The required reverse Euclidean algorithm is the solution to the modular equation (5x) mod 91 is
x = 6(mod 91).
Given that (5*x) mod 91 =32.
To solve the modular equation (5*x) mod 91 =32 using reverse Euclidean algorithm is to find the modular inverse of 5 modulo 91.
Consider (5*x) mod 91 =32.
5x = 32(mod 91)
Apply the Euclidean algorithm to find GCD of 5 and 91 is
91 = 18 * 5 + 1.
Rewrite it in congruence form,
1 = 91 - 18 *5
On simplifying the equation,
1 = 91 (mod 5)
The modular inverse of 5 modulo 91 is 18.
Multiply equation by 18 on both sides,
90x = 576 (mod91)
To obtain the smallest positive solution,
91:576 = 6 (mod 91)
Divide both sides by the coefficient of x:
x = 6 * 90^(-1).
Apply the Euclidean algorithm,
91 = 1*90 + 1.
Simplify the equation,
1 + 1 mod (90)
The modular inverse of 90 modulo 91 is 1.
Substitute the modular inverse in the given question gives,
x = 6*1(mod 91)
x= 6 (mod91)
Therefore, the solution to the modular equation (5x) mod 91 is
x = 6(mod 91).
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What is n^2-11n+10
Please explain step by step and detailed to get the answer
The factored expression of n² - 11n + 10 is (n - 10)(n - 1)
How to factorize the expressionFrom the question, we have the following parameters that can be used in our computation:
n² - 11n + 10
To determine the pair of factors to factor the expression, we find two expressions
That must add up to -11nThat must mutiply to 10x²using the above as a guide, we have the following:
The expressions are -10n and -n
So, we have
n² - 11n + 10 = n² - 10n - n + 10
When factored, we have
n² - 11n + 10 = (n - 10)(n - 1)
Hence, the factored expression of n² - 11n + 10 is (n - 10)(n - 1)
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Pls help me with this asap
Container #1 is the only one large enough to hold the contents of a one liter bottle of soft drink.
Container #1: The volume formula for a cylinder is V = πr²h, where r is the radius and h is the height.
Radius (r) = 8 cm / 2 = 4 cm
Height (h) = 19 cm
So, V1 = π(4 cm)²(19 cm)
≈ 3032.07 cm³
Container #2:
Radius (r) = 5 cm
Height (h) = 12 cm
Using the formula:
V2 = π(5 cm)²(12 cm)
≈ 942.48 cm³
Container #3:
Diameter (d) = 12 cm
Radius (r) = 12 cm / 2 = 6 cm
Height (h) = 10 cm
V3 = π(6 cm)²(10 cm)
≈ 1130.97 cm³
Now, Comparing the volumes:
V1 ≈ 3032 cm³
V2 ≈ 942 cm³
V3 ≈ 1131 cm³
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I need help solving these problems please.
Answer: i dont know what this is but i do believe its the second one
Step-by-step explanation:
HELP ME ASAPPPPPPPP WILL MARK BRAINLIEST PLEASEEEEEEEEEE SHOW WORK THANK YOUUUUUUU
A scientist has carbon-dated a piece of fossilized tree bark that is thought to be over 5,000 years old. The scientist determines that the sample contains 75% of the original amount of carbon-14. The half-life of carbon-14 is 5730 years. Is the scientist's hypothesis of the tree bark being over 5,000 years old correct?
The calculated age of the sample is 2865 years. Since this is less than 5,000 years, the scientist's hypothesis that the tree bark is over 5,000 years old is incorrect.
To determine if the scientist's hypothesis is correct, we can use the concept of half-life and the given information.
The half-life of carbon-14 is 5730 years, which means that after 5730 years, half of the original amount of carbon-14 in a sample would have decayed.
In this case, the fossilized tree bark is thought to be over 5,000 years old. If the sample contains 75% of the original amount of carbon-14, it means that 25% of the carbon-14 has decayed.
Let's calculate the number of half-lives that have passed:
(100% - 75%) / 50% = 0.25 / 0.5 = 0.5
So, 0.5 half-lives have passed.
Since each half-life is 5730 years, we can calculate the approximate age of the sample:
0.5 half-lives × 5730 years per half-life = 2865 years
The calculated age of the sample is 2865 years. Since this is less than 5,000 years, the scientist's hypothesis that the tree bark is over 5,000 years old is incorrect.
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which quadratic equation has the roots 3 + i and 3 - i
The quadratic equation that has the roots 3 + i and 3 - i is x² - 6x + 10 = 0.
The general form of a quadratic equation is ax² + bx + c = 0, where a, b, and c are constants.
The roots of the quadratic equation are the values of x that make the equation equal to zero.
Therefore, if a quadratic equation has the roots 3 + i and 3 - i, it can be written in the factored form as (x - (3 + i))(x - (3 - i)) = 0. Expanding this product yields x² - (3 + i + 3 - i)x + (3 + i)(3 - i) = 0.
Simplifying this expression further results in the quadratic equation x² - 6x + 10 = 0.
The quadratic equation that has the roots 3 + i and 3 - i is x² - 6x + 10 = 0.
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All of the pairs of corresponding angles and sides in ΔCAT and ΔDOG are congruent. Based on this information, which of the following is a true statement?
A true statement based on the given information is that ΔCAT and ΔDOG are similar triangles, meaning their corresponding angles are congruent and their corresponding sides are in proportion.
If all pairs of corresponding angles and sides in triangles ΔCAT and ΔDOG are congruent, it implies that the two triangles are similar. In similar triangles, the corresponding angles are congruent, and the corresponding sides are in proportion.
Based on this information, the following true statement can be made:
The ratio of the lengths of the corresponding sides in ΔCAT and ΔDOG is equal.
For example, if the corresponding sides are CA and DO, the ratio CA/DO will be equal to the ratio of the lengths of the other corresponding sides.
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A dinner theater has fixed costs of $1,000 per day. It costs the dinner theater $10 per person for food and a
ticket to the dinner theater costs $30. How many tickets does the dinner theater have to sell in order to break
even?
50 tickets
O 10 tickets
O 100 tickets
O20 tickets
how many cubic inches will a rectangular pyramid hold if its 15 in height by 12 inches base
The number of cubic inches that the rectangular pyramid will hold if it has 15 inches height and 12 inches base is 720 inches³.
Here we have to find the volume of the pyramid since cubic unit means the volume.
We know that,
Volume of any pyramid = 1/3 × Base area × Height
Here the given pyramid is a rectangular pyramid.
Base of the pyramid will be a rectangle.
So, base area = length × width
Now given that,
Base is 12 inches.
Since there is only a dimension, width and length will be equal to 12 inches.
So base area = 12 × 12 = 144 inches²
Height = 15 inches
Volume of the pyramid = 1/3 × 144 × 15
= 720 inches³
Hence the volume is 720 inches³.
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help please show work
The slope of line AD will be 4/3
Given,
ABCD is a square.
AB ⇒ y = -3/4 x + 7
Now,
AB is straight line.
Straight line equation ⇒ y =mx + c
m = slope of line
c = y intercept
Here,
m = -3/4 ( slope of line AB )
Now for slope of line AD,
ABCD is a square. Thus AB and AD are perpendicular to each other.
According the relation,
[tex]m_{1} m_{2} = -1[/tex]
[tex]m_{1}[/tex] = slope of line 1
[tex]m_{2}[/tex] = slope of line 2
So,
-3/4 [tex]m_{2}[/tex] = -1
[tex]m_{2}[/tex] = 4/3.
Hence slope of AD is 4/3 .
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A group of students was asked to pick a favorite primary color. The results are shown in the table.
Red Green Blue Total Male 12 24 4 40 Female 15 30 5 50 Total 27 54 9 90
Question
Which statement correctly explains the association between being male and favoring the color blue?
Answer options with 5 options
A.
There is a negative association because the number of males who responded to the survey is less than the number of females.
B.
There is a negative association because the number of males who chose blue is less than the number of females who chose blue.
C.
There is a negative association because the number of males who chose blue is the smaller than the number of males who chose the other colors.
D.
There is no association because the percent of males who chose blue is equal to the percent of females that chose blue.
E.
There is no association because the percent of individuals who are male and chose blue is not equal to the percent of individuals who are female and chose blue.
The correct statement that explains the association between being male and favoring the color blue is:
B. There is a negative association because the number of males who chose blue is less than the number of females who chose blue.
In the given table, it can be observed that out of the total 90 students surveyed, 9 students (4 males and 5 females) decided the color blue as their favorite primary color. Since the number of males (4) who selected blue is less than the number of females (5) who chose blue, there is a negative association between being male and favoring the color blue.
50 Points! Multiple choice geometry question. Photo attached. Thank you!
This is a simple one.
All you need to do is find the scale factor of the shapes. (How much has it decreased by?)
Wecan find this by doing 15 ÷ 20 (not the other way round because we want to find the scale factor for the bigger rectangle to the smaller)
15 ÷ 20 = 0.75
So to find the area all you need to do is times the area with the scale factor which is 0.75
500 x 0.75 = 375cm²
So the answer is
(A) 375cm²
the next 3 terms of 10,13,17,238
A rectangular prism measures 3 ft by 6 ft by 5 ft. If the dimensions of the box were all quadrupled, how would the surface area of the box change?
1.The new surface area would be 16 times the original surface area.
2.The new surface area would be quadruple the original surface area.
3.The surface area would not change.
4.The new surface area would be 12 times the original surface area.
To determine how the surface area of a rectangular prism changes when all dimensions are quadrupled, we need to compare the original surface area to the new surface area.
The original surface area of the rectangular prism is given by:
SA_original = 2lw + 2lh + 2wh
where l, w, and h represent the length, width, and height of the prism, respectively.
In this case, the dimensions of the original box are:
Length (l) = 3 ft
Width (w) = 6 ft
Height (h) = 5 ft
Substituting these values into the formula, we have:
SA_original = 2(3)(6) + 2(3)(5) + 2(6)(5)
= 36 + 30 + 60
= 126 square feet
Now, if we quadruple all the dimensions of the box, the new dimensions would be:
Length (l_new) = 4(3) = 12 ft
Width (w_new) = 4(6) = 24 ft
Height (h_new) = 4(5) = 20 ft
The new surface area of the enlarged box is given by:
SA_new = 2(l_new)(w_new) + 2(l_new)(h_new) + 2(w_new)(h_new)
= 2(12)(24) + 2(12)(20) + 2(24)(20)
= 576 + 480 + 960
= 2016 square feet
Comparing the original surface area (SA_original = 126 sq ft) to the new surface area (SA_new = 2016 sq ft), we can see that SA_new is 16 times greater than SA_original.
Therefore, the correct answer is:
1. The new surface area would be 16 times the original surface area.
What is the meaning of "A function f is one-to-one if f(x) = f(y) implies x = y"?
The meaning of the sentence is that for an one-to-one function, each input makes an unique output.
What is the meaning of the sentence?Here we want to find the meaning of "A function f is one-to-one if f(x) = f(y) implies x = y"
That is a definition of an one-to-one function.
In simpler words, an one to one function is a function that for each input x, the output y is unique.
So the sentence says that if:
f(x) = f(y) (we have two equal outputs)
Then x = y (then the inputs must be equal)
So that is the meaning of the sentence.
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1. A research poll was conducted to investigate opinions about global warming. The respondents (1 point)
who answered yes when asked if there is solid evidence that the Earth is getting warmer were
then asked to select a cause of global warming. The results were arranged between male and
female responses. Using a 0.05 significance level, a test statistic of 0.792 and a critical value of
5.991 are found. Test the claim that the gender of the respondent is independent of the choice
for the cause of global warming. State the initial and final conclusion
OReject the null hypothesis; there is not sufficient evidence to warrant rejection of the claim that the
gender of the respondent is independent of the choice for the cause of global warming.
OReject the null hypothesis; there is sufficient evidence to warrant rejection of the claim that the gender
of the respondent is independent of the choice for the cause of global warming.
Fail to reject the null hypothesis; there is not sufficient evidence to warrant rejection of the claim that
the gender of the respondent is independent of the choice for the cause of global warming.
OFail to reject the null hypothesis; there is sufficient evidence to warrant rejection of the claim that the
gender of the respondent is independent of the choice for the cause of global warming.
The initial and final conclusion would be Fail to reject the null hypothesis; there is not sufficient evidence to warrant rejection of the claim that the gender of the respondent is independent of the choice for the cause of global warming. Option C
Why does it fail to reject the null hypothesis?The initial hypothesis is that the gender of the respondent is independent of the choice for the cause of global warming.
The alternative hypothesis is that the gender of the respondent is dependent on the choice for the cause of global warming.
The test statistic of 0.792 is less than the critical value of 5.991. Therefore, we do not reject the null hypothesis.
Looking at the statistic that has been provided, we do not have enough evidence to conclude that the gender of the respondent is related to the choice of the cause of global warming at the 0.05 significance level.
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The circle has center O. Its radius is 4 ft, and the central angle a measures 110°. What is the area of the shaded region?
Give the exact answer in terms of it, and be sure to include the correct unit in your answer.
The area of the shaded region is (133π/9) square feet.
Given that the radius (r) is 4 ft, the area of the entire circle is:
A = π(4)² = 16π ft²
To find the area of the sector, we need to calculate the fraction of the circle that the central angle represents.
The fraction is determined by dividing the measure of the central angle (110°) by the total angle in a circle (360°).
Fraction of the circle represented by the sector = 110° / 360° = 11/36
To find the area of the sector, we multiply the fraction by the area of the entire circle:
Area of the sector = (11/36) × (16π)
= (11π/9) ft²
Finally, to find the area of the shaded region, we subtract the area of the sector from the area of the entire circle:
Area of shaded region = Area of entire circle - Area of sector
Area of shaded region = 16π - (11π/9)
= (144π - 11π)/9
= (133π/9) ft²
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carlos tiene 18 años y juan 42en cuantos años la edad de juan sera el doble de la de carlos es ese entonces
In 6 years Juan will have the double of Carlos age.
When Juan will have double of Carlos's age?The ages of each one are:
Carlos = 18 years old.
Juan = 42 years old.
In x years, they will have:
C = 18 + x
J = 42 + x
Carlos will have the double of Juan's age when:
J = 2*C
Replacing the equations we will get the linear equation:
42 + x = 2*(18 + x)
Solving for x we will get:
42 +x = 36 + 2x
Solving for x:
42 - 36 = 2x - x
6 = x
So Juan will have the double of Carlos age in 6 years.
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100 Points! Geometry question. Photo attached. Find x and y. Please show as much work as possible. Thank you!
The values of given x and y is,
x = 6 and y = 13/2
Since we know that,
Basic proportionality theorem,
The basic proportionality theory was developed by Thales, a great Greek mathematician; hence, it is also known as the Thales theorem. According to the great mathematician, the ratio of any two matching sides of any two equiangular triangles is always the same. The basic proportionality theorem (BPT) was suggested based on this premise.
Since we know that,
In the figure we that,
⇒ 2x + 1 = x +7
⇒ x = 6
Similarly
⇒ 3y - 8 = y +5
⇒ y = 13/2
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does anyone have answers to Practice: Unit Rates for Ratios with Fractions Level G iready and the quiz? I will give a lot of points and brainliest answer
While direct answers to iReady tasks are not provided, guidance for tackling problems involving unit rates and ratios with fractions was presented. The concept to calculate the unit rate involves dividing the first quantity by the second quantity. One should work towards solving these problems independently to reinforce the learning.
Explanation:I'm sorry, but I cannot provide direct answers to your iReady task; it would not be fair or beneficial to your learning. However, I can guide you in how to tackle problems involving unit rates and ratios with fractions. With a unit rate, you're finding a ratio that compares a quantity to one unit of another quantity. The method typically involves dividing the first quantity by the second one.
For example, if you have a problem that says '6 cookies cost $1.50, what is the unit rate?', you would solve it by dividing 1.50 (the cost) by 6 (the number of cookies) to find the unit cost of a single cookie. This gives you a unit rate of $0.25 per cookie. If your questions on iReady involve complex fractions or operations, follow the same concept but use the relevant operation (multiplication, division, etc.). Practice moving toward solving these problems independently to improve your understanding of the concept.
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rewrite the fractions 2/3 and 4/15 as fraction with least common denominator
Answer: To rewrite the fractions 2/3 and 4/15 with the least common denominator (LCD), we need to find the smallest multiple that both denominators, 3 and 15, divide into evenly.
The prime factorization of 3 is 3, and the prime factorization of 15 is 3 * 5.
To find the LCD, we take the highest power of each prime factor that appears in either denominator. In this case, the highest power of 3 is 3, and the highest power of 5 is 5.
The LCD is the product of these highest powers: LCD = 3 * 5 = 15.
Now, we can rewrite the fractions with the least common denominator:
2/3 = (2/3) * (5/5) = 10/15
4/15 = (4/15) * (1/1) = 4/15
Therefore, the fractions 2/3 and 4/15 can be rewritten with the least common denominator as 10/15 and 4/15, respectively.
Step-by-step explanation:
93°
65°
m
X
finding the angle of x
The measure of angle C is,
⇒ x = 22°
We have to given that,
In a triangle ABC,
Angle A = 65 degree,
Angle B = 93 degree.
Now, Let us assume that,
Measure of angle C = x
Hence, We get;
⇒ ∠A + ∠B + ∠C = 180°
Substitute all the values,
⇒ 65 + 93 + x = 180
⇒ 158 + x = 180
⇒ x = 180 - 158
⇒ x = 22
Therefore, The measure of angle C is,
⇒ x = 22°
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Complete question is,
In Triangle ABC, Angle A = 65 degree, B=93 degree. Find Angle C?
MP4 Model with Math Write an
expression for the volume of the bar magnet.
0.5 in. N
2.25 in.
S
0.25 in.
The volume of the bar magnet with dimensions 0.5 in. (length), 2.25 in. (width), and 0.25 in. (thickness) is 0.28125 cubic inches.
The expression for the volume of a bar magnet can be calculated by multiplying its length, width, and thickness.
In this case, the dimensions provided are:
Length = 0.5 in.
Width = 2.25 in.
Thickness = 0.25 in.
To find the volume, we multiply these dimensions together:
Volume = Length × Width × Thickness
= 0.5 in. × 2.25 in. × 0.25 in.
Simplifying this expression, we get:
Volume = 0.28125 in³
Therefore, the volume of the bar magnet with dimensions 0.5 in. (length), 2.25 in. (width), and 0.25 in. (thickness) is 0.28125 cubic inches.
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Which is the radian measure for 30° and its associated coordinate point on the unit circle?
7 pie/6
Pie over 6
Answer:
57
Step-by-step explanation:
this is the boybfiend
Instead of multiplying a number by 1/4, I multiplied it by 1/8 and got 2. What was I originally supposed to get as a result?
PLS HELP ME!!
What is the area of a rectangle whose width is n feet and who’s length is 2 feet more than 3 times it’s width in terms of n?
Answer: The length of the rectangle is given as "2 feet more than 3 times its width."
Let's break it down step by step:
The width of the rectangle is n feet.Three times the width is 3n.Two feet more than 3 times the width is 3n + 2.
The formula for the area of a rectangle is length multiplied by width. So, in terms of n, the area of the rectangle would be:
Area = Length × Width
= (3n + 2) × n
= 3n^2 + 2n
Therefore, the area of the rectangle, in terms of n, is 3n^2 + 2n.
of x. i) Let f: R-R be defined by f(x) = mx + c, x = R. If f(0) = 5 and f(1) = 6, find the values. of m and c. Also, find the function f(x).
The values of m and c are m = 1 and c = 5.
The function f(x) is given by: f(x) = x + 5
How to solve the functionTo find the values of m and c in the function f(x) = mx + c, we can use the given information that f(0) = 5 and f(1) = 6.
Let's substitute x = 0 into the function:
f(0) = m(0) + c = 0 + c = c
We know that f(0) = 5, so c = 5.
Now let's substitute x = 1 into the function:
f(1) = m(1) + c = m + c = m + 5 = 6
Subtracting 5 from both sides, we have:
m + 5 - 5 = 6 - 5
m = 1
Therefore, the values of m and c are m = 1 and c = 5.
The function f(x) is given by:
f(x) = mx + c
f(x) = 1x + 5
f(x) = x + 5
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If you spin the spinner 90 times, what is the best prediction possible for the number of times
it will not land on yellow?
times
Submit
Answer:
Assuming the spinner has 6 equal sectors of different colors, and yellow is only one of those colors, we can say that the probability of the spinner not landing on yellow is 5/6 or approximately 0.8333.
To predict the number of times the spinner will not land on yellow out of 90 spins, we can multiply the probability by the total number of spins:
0.8333 x 90 = 74.997 or approximately 75
Therefore, the best prediction possible for the number of times the spinner will not land on yellow out of 90 spins is 75 times.
This number pattern -1:5 ;x; 35 ; ...
Is a quadratic number pattern.
a) Calculate x
b) Hence, or otherwise, determine the nth term of the sequence.
This sequence 4;9; x; 37; .... is a quadratic sequence.
a) Calculate x
b) Hence, or otherwise, determine the nth term of the sequence.
Answer:
[tex]\textsf{a)} \quad x = 17[/tex]
[tex]\textsf{b)} \quad T_n=3n^2-3n-1[/tex]
[tex]\textsf{a)} \quad x = 20[/tex]
[tex]\textsf{b)} \quad T_n=3n^2-4n+5[/tex]
Step-by-step explanation:
Given quadratic number pattern:
-1, 5, x, 35, ...To find the equation for the nth term, we can use the general form of a quadratic equation:
[tex]\boxed{T_n=an^2 + bn + c}[/tex]
where n is the position of the term.
Let's substitute the values of T₁, T₂ and T₄ into the quadratic equation: to create three equations:
[tex]\begin{aligned}T_1=a(1)^2+b(1)+c&=-1\\a+b+c&=-1\end{aligned}[/tex]
[tex]\begin{aligned}T_2=a(2)^2+b(2)+c&=5\\4a+2b+c&=5\end{aligned}[/tex]
[tex]\begin{aligned}T_4=a(4)^2+b(4)+c&=35\\16a+4b+c&=35\end{aligned}[/tex]
Rearrange the first equation to isolate c:
[tex]c=-a-b-1[/tex]
Substitute this into the second and third equations:
[tex]\begin{aligned}4a+2b+(-a-b-1)&=5\\3a+b&=6\end{ailgned}[/tex]
[tex]\begin{aligned}16a+4b+(-a-b-1)&=35\\15a+3b&=36\end{ailgned}[/tex]
Solve the equations simultaneously by rearranged the first equation to isolate b and substituting this into the second equation and solving for a:
[tex]b=-3a+6[/tex]
[tex]\begin{aligned}15a+3(-3a+6)&=36 \\15a-9a+18&=36\\6a&=18\\a&=3 \end{aligned}[/tex]
Substitute the found value of a into the equation for b and solve for b:
[tex]\begin{aligned}b&=-3a+6\\&=-3(3)+6\\&=-9+6\\&=-3\end{aligned}[/tex]
Finally, substitute the found values of a and b into the equation for c and solve for c:
[tex]\begin{aligned}c&=-a-b-1\\&=-3-(-3)-1\\&=-3+3-1\\&=-1\end{aligned}[/tex]
Therefore, the equation for the nth term is:
[tex]\boxed{T_n=3n^2-3n-1}[/tex]
The value of x is the 3rd term. Therefore, to find the value of x, substitute n = 3 into the equation for the nth term:
[tex]\begin{aligned}T_3&=3(3)^2-3(3)-1\\&=3(9)-3(3)-1\\&=27-9-1\\&=18-1\\&=17\end{aligned}[/tex]
Therefore, the value of x is 17.
[tex]\hrulefill[/tex]
Given quadratic number pattern:
4, 9, x, 37, ...To find the equation for the nth term, we can use the general form of a quadratic equation:
[tex]\boxed{T_n=an^2 + bn + c}[/tex]
where n is the position of the term.
Let's substitute the values of T₁, T₂ and T₄ into the quadratic equation: to create three equations:
[tex]\begin{aligned}T_1=a(1)^2+b(1)+c&=4\\a+b+c&=4\end{aligned}[/tex]
[tex]\begin{aligned}T_2=a(2)^2+b(2)+c&=9\\4a+2b+c&=9\end{aligned}[/tex]
[tex]\begin{aligned}T_4=a(4)^2+b(4)+c&=37\\16a+4b+c&=37\end{aligned}[/tex]
Rearrange the first equation to isolate c:
[tex]c=-a-b+4[/tex]
Substitute this into the second and third equations:
[tex]\begin{aligned}4a+2b+(-a-b+4)&=9\\3a+b&=5\end{ailgned}[/tex]
[tex]\begin{aligned}16a+4b+(-a-b+4)&=37\\15a+3b&=33\end{ailgned}[/tex]
Solve the equations simultaneously by rearranged the first equation to isolate b and substituting this into the second equation and solving for a:
[tex]b=-3a+5[/tex]
[tex]\begin{aligned}15a+3(-3a+5)&=33 \\15a-9a+15&=33\\6a&=18\\a&=3 \end{aligned}[/tex]
Substitute the found value of a into the equation for b and solve for b:
[tex]\begin{aligned}b&=-3a+5\\&=-3(3)+5\\&=-9+5\\&=-4\end{aligned}[/tex]
Finally, substitute the found values of a and b into the equation for c and solve for c:
[tex]\begin{aligned}c&=-a-b+4\\&=-3-(-4)+4\\&=-3+4+4\\&=5\end{aligned}[/tex]
Therefore, the equation for the nth term is:
[tex]\boxed{T_n=3n^2-4n+5}[/tex]
The value of x is the 3rd term. Therefore, to find the value of x, substitute n = 3 into the equation for the nth term:
[tex]\begin{aligned}T_3&=3(3)^2-4(3)+5\\&=3(9)-4(3)+5\\&=27-12+5\\&=15+5\\&=20\end{aligned}[/tex]
Therefore, the value of x is 20.
Verify:
sin(x)/1-cos(x) - sin(x) cos(x)/1+cos(x) = csc (x) (1 + cos² (x))
Using trigonometric identities sin(x)/[1 - cos(x)] - sin(x)cos(x)/[1 + cos(x)] = csc (x)(1 + cos² (x)),
What are trigonometric identities?Trigonometric identities are equations that contain trigonometric ratios.
To verify the trigonometric identity
sin(x)/[1 - cos(x)] - sin(x)cos(x)/[1 + cos(x)] = csc (x)(1 + cos² (x)), we need to show that Left Hand Side, L.H.S equals Right Hand Side R.H.S. We proceed as follows.
L.H.S = sin(x)/[1 - cos(x)] - sin(x)cos(x)/[1 + cos(x)]
Taking the L.C.M, we have that
{sin(x)[1 + cos(x)] - sin(x)cos(x)[1 - cos(x)]}/[1 - cos(x)][1 + cos(x)]
Expanding the brackets, we have that
{sin(x) + sin(x)cos(x)] - sin(x)cos(x) + sin(x)cos²(x)]}/[1 - cos(x)][1 + cos(x)]
Simplifying, we have that
= {sin(x) + 0 + sin(x)cos²(x)]}/[1 - cos²(x)] Since ([1 - cos(x)][1 + cos(x)] = [1 - cos²(x)]
= {sin(x) + sin(x)cos²(x)]}/sin²(x) [since sin²(x) = 1 - cos²(x)]
Factorizing out sinx in the equation, we have that
= {sin(x)(1 + cos²(x)]}/sin²(x)
= (1 + cos²(x)]}/sin(x)
= cosec(x)(1 + cos²(x)]} (since cosec(x) = 1/sin(x))
= R.H.S
Since L.H.S = R.H.S, we have that
sin(x)/[1 - cos(x)] - sin(x)cos(x)/[1 + cos(x)] = csc (x)(1 + cos² (x))
Learn more about trigonometric identities here:
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I have a problem at 4'o clock on the given attachment picture please check it out
Answer:
4
Step-by-step explanation:
You want the product of terms (n+1)/n for integers n from 1 to 3.
ProductWhen there are only 3 terms, we can write out the product:
(1 +1)/1 × (2 +1)/2 × (3 +1)/3 = 2 × 3/2 × 4/3 = 4
The product is 4.
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Additional comment
You will notice the first term has a denominator of 1. In each pair of terms, the numerator of a term cancels the denominator of the next term. This means the product of k terms will always be (k+1). For 3 terms, the product is 3+1 = 4.
Apparently, the answer in each case is the hour number.
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