Using complementary and supplementary angles, we have that:
c. The angles are complementary, hence the equation is 4x - 3 + 2x + 1 = 90 and the solution is x = 15.33.
d. The angles are supplementary, hence the equation is 43x + 16 + 110 = 180 and the solution is x = 18.
What are complementary angles?When the measures of two angles add to 90º, the angles are complementary.
This is the case in item c, hence:
4x - 3 + 2x + 1 = 90
6x = 92
x = 92/6
x = 15.33.
What are supplementary angles?When the measures of two angles add to 180º, the angles are supplementary.
This is the case in item d, hence:
3x + 16 + 110 = 180.
3x = 54
x = 54/3
x = 18.
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frames covered with shade cloth), (2) control (pvc frames only), and (3) warmer (pvc frames covered with plastic). one of the article’s authors kindly supplied the accompanying data on the d
(1) Frames covered with shade cloth mean = 1.71 and standard deviation = 0.401
(2) control pvc frames only mean = 19.26 and standard deviation = 0.536
(3) warmer (pvc frames covered with plastic) mean = 2.08 and standard deviation = 0.774.
(1) Using the cooler mean and SD:
The calculations are shown in the table below:
[tex]\begin{array}{lll} & \mathrm{X} & (\mathrm{X} \text {-mean })^{2} \\& 1.59 & 0.0144 \\& 1.43 & 0.0784 \\& 1.88 & 0.0289 \\& 1.26 & 0.2025 \\& 1.91 & 0.04 \\& 1.86 & 0.0225 \\& 1.9 & 0.0361 \\& 1.57 & 0.0196 \\& 1.79 & 0.0064 \\& 1.72 & 0.0001 \\& 2.41 & 0.49 \\& 2.34 & 0.3969 \\& 0.83 & 0.7744 \\& 1.34 & 0.1369 \\& 1.76 & 0.0025 \\\text { Total } & 25.59 & 2.2496\end{array}[/tex]
Sample size
[tex]$$n=15$$[/tex]
Sample sum:
[tex]$$\sum x=25.59$$[/tex]
Sample mean:
[tex]$$\begin{aligned}\bar{x}=\frac{\sum x}{n} &=25.59 / 15 \\&=1.71\end{aligned}$$[/tex]
Sample standard deviation:
[tex]\begin{aligned}s=\sqrt{\frac{\sum(x-\bar{x})^2}{n-1}} &=\sqrt(2.2496 /(15-1)) \\&=0.401\end{aligned}[/tex]
(2) Using the control mean and SD:
The calculations are shown in the table below:
[tex]\begin{array}{lll} & \mathrm{X} & (\mathrm{X}-\text { mean })^{2} \\& 1.92 & 0.0289 \\& 2 & 0.0625 \\& 2.19 & 0.1936 \\& 1.12 & 0.3969 \\& 1.78 & 0.0009 \\& 1.84 & 0.0081 \\& 2.45 & 0.49 \\& 2.03 & 0.0784 \\& 1.52 & 0.0529 \\& 0.51 & 1.5376 \\& 1.9 & 0.0225 \\\text { Total } & 19.26 & 2.8723\end{array}[/tex]
Sample size:
[tex]$$n=11$$[/tex]
Sample sum:
[tex]$$\sum x=19.26$$[/tex]
Sample mean:
[tex]\begin{aligned}s=\sqrt{\frac{\sum(x-\bar{x})^2}{n-1}} &=\sqrt(2.8723 /(11-1)) \\&=0.536\end{aligned}[/tex]
(3) Assuming a warmer mean and SD:
The calculations are shown in the table below:
[tex]$\begin{array}{lll} & \mathrm{X} & (\text { X-mean })^{2} \\ & 2.57 & 0.3969 \\ & 2.6 & 0.4356 \\ & 1.93 & 0.0001 \\ & 1.58 & 0.1296 \\ & 2.3 & 0.1296 \\ & 0.84 & 1.21 \\ & 2.65 & 0.5041 \\ & 0.14 & 3.24 \\ & 2.74 & 0.64 \\ & 2.53 & 0.3481 \\ & 2.13 & 0.0361 \\ & 2.86 & 0.8464 \\ & 2.31 & 0.1369 \\ & 1.91 & 0.0009 \\ \text { Total } & 29.09 & 8.0543\end{array}$[/tex]
Sample size:
[tex]$n=14$[/tex]
Sample sum:
[tex]$$\sum x=29.09$$[/tex]
Sample mean:
[tex]$$\begin{aligned}\bar{x}=\frac{\sum x}{n} &=29.09 / 14 \\&=2.08\end{aligned}$$[/tex]
Sample standard deviation:
[tex]s=\sqrt{\frac{\sum(x-\bar{x})^2}{n-1}} &=\sqrt(7.7883 /(14-1)) \\&[/tex]
[tex]=0.774[/tex]
Hence, these are the different samples of mean and standard deviation.
What does "standard deviation" mean?The term "standard deviation" (or "") refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.
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6. The genetic information of almost
every living thing is stored in a tiny
strand called DNA. Human DNA is
3.4 x 10-8 meter long.
a. Write the length in standard form.
b. How many significant
digits are there in the
measurement?
The la
The length of DNA in Scientific notation (standard form) = 34[tex]e^{-8}[/tex] meters
Also, the significant figure in the measurement = 1
In this question, we have been given the length of human DNA.
The genetic information of almost every living thing is stored in a tiny strand called DNA.
Human DNA is 3.4 x 10-8 meter long.
We need to write the length in standard form.
3.4 x 10-8 meter
= 3.4 x 10 ^ (-8)
= 3.4 x 0.00000001
= 0.000000034
= 0.00000003
Here Significant Figures = 1
Decimals = 8
And the length in Scientific Notation = 34[tex]e^{-8}[/tex] meters
Therefore, the length of DNA in Scientific notation (standard form) = 34[tex]e^{-8}[/tex] meters
Also, the significant figure in the measurement = 1
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The end points of ab are A (-7,3) and B (1,0) find the coordinates of the midpoint M
Answer:
(-3,3/2)
Step-by-step explanation:
It's easy just add the abscissa and ordinate individually and divide the obtained abscissa and ordinate by 2
Find the y intercept slope and equation
picture below
without further Ado, let's pick two points off the table, check the picture below, and let's roll on.
[tex](\stackrel{x_1}{-1}~,~\stackrel{y_1}{3})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{0}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{0}-\stackrel{y1}{3}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{(-1)}}} \implies \cfrac{-3}{2 +1} \implies \cfrac{ -3 }{ 3 }\implies -1[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{3}=\stackrel{m}{-1}(x-\stackrel{x_1}{(-1)}) \implies y -3= -1 (x +1) \\\\\\ y-3=-x-1\implies {\LARGE \begin{array}{llll} y = -x+2 \end{array}} \qquad \impliedby \stackrel{y-intercept}{(0~~,~~2)}[/tex]
Suppose a meteorologist is tracking rainfall patterns in Mickton, Florida. Select all true statements.
Mickton had more rainy days in June 2012 than November 2012, December 2012, and January 2012 combined.
There was only one month with more rainy days in 2013 than 2012.
Mickton had more rainy days in July than in January, November, and December combined in 2012 and 2013.
There were 13 rainy days in February 2013.
The month with the greatest difference in the number of rainy days between 2012 and 2013 was December.
The correct statements regarding the given bar graph are as follows:
Mickton had more rainy days in July than in January, November, and December combined in 2012 and 2013.There were 13 rainy days in February 2013.The month with the greatest difference in the number of rainy days between 2012 and 2013 was December.What does a bar graph show?A bar graph shows the number of times that each observation appears in the data-set.
The first correct statement is:
Mickton had more rainy days in July than in January, November, and December combined in 2012 and 2013.
As:
30 + 29 > 8 + 5 + 11 + 7 + 10 + 4
The second correct statement is:
There were 13 rainy days in February 2013.
Due to the blue bar in Feb.
The third correct statement is:
The month with the greatest difference in the number of rainy days between 2012 and 2013 was December.
Difference of 10 - 4 = 6 days, which is the biggest.
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Solve for b.
2²376.
b+5=20-b
b=
Answer: b=7.5
Step-by-step explanation:
b+5=20-b
b+b+5=20-b+b ==> add b on both sides to put b on only one side of the equation
2b+5=20
2b=15
b=7.5
Find the distance from point X to line p.
The distance from point X to line p is 2√17 units.
We are given the point X as:
X = ( - 2 , 5 )
We need to find the distance of X from the line p.
We will do this by using the distance formula:
Distance = √ (y₂ - y₁)² + (x₂ - x₁)²
Distance = √ (- 2 - 0) ² - (5 - ( - 3)) ²
= √ ( - 2) ² - (5 + 3) ²
= √ ( - 2) ² - (8) ²
= √ 4 + 64
= √ 68
= 2 √17 units
Therefore, the distance from point X to line p is 2√17 units.
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Your question was incomplete. Please find the content below:
Find the distance from point X to line p. An image of a point X, a line p, and three segments joining the point and the line. Question 12 options:
A. 2 √34 units
B. √85 units
C. 2 √17 units
D. √17 units
Given the rule what is the new coordinate?
the image (new coordinate) after the translation is (-2.5, 9.8)
How to find the new coordinate by using the given rule?
Here we have a rule (also called a transformation or an operator) that works as:
T(x, y) = (x - 7.5, y + 6.8)
So we decrease the x-value by 7.5 and increase the y-value by 6.8. This is a translation of 7.5 units to the left and 6.8 units upwards.
Now, our point is (5, 3), if we apply that transformation we will get:
T(5, 3) = (5 - 7.5, 3 + 6.8) = (-2.5, 9.8)
That is the image after the translation.
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Which of the following is a false statement?
A
Banks are insured by the government.
B
Money can be stolen or lost if you keep it at home.
C
If your bank goes out of business, you lose your money.
D
Your money can grow if you keep it in a bank account.
C ) If your bank goes out of business, you lose your money is a false statement .
Since banks are insured by FDIC . So if a bank becomes dissolves or becomes bankrupt FDIC covers the loss of customers of bank upto a certain limit .
A ) Banks are insured by the government.
This is a true statement .
B ) Money can be stolen or lost if you keep it at home . Even this is a true statement .
D ) Your money can grow if you keep it in a bank account . This is also a true statement .
Hence , C ) If your bank goes out of business, you lose your money is a false statement .
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i dont now how to do this
Answer:if they choose the family tickets its 15% off the regular ticketts individually
Step-by-step explanation:
Please answer this question for me. Urgent.
Using a system of equations, the expression, in terms of x, for the total number of students at the college is:
T = 11x.
What is a system of equations?A system of equations is when multiple variables are related, and equations are built to find the values of each variable, according to the relations given in the problem
For this problem, considering the Venn diagram, we have that:
A + x students play the Piano.B + x students play the Guitar.Thus the total number of students in the college is given by:
T = A + B + x.
1/2 of the students who learn the piano also learn the guitar, hence:
A = x.
Thus the number of students who play the piano is:
A + x = x + x = 2x.
5 times as many students learn the guitar as learn the piano, hence:
B + x = 5(2x)
B + x = 10x
B = 9x.
Hence:
T = A + B + x
T = x + 9x + x
T = 11x.
The expression, in terms of x, for the total number of students at the college is:
T = 11x.
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8 + 3 4 ÷ -2 3 = what?
-10
By BODMAS Method
8 + 3*4 ÷ -2*3
8 + 3* [tex]\frac{4}{-2}[/tex] *3
8 + 3*-2*3
8 +(-18)
-10
The order of operations (BODMAS) in mathematics and computer programming refers to a set of rules that represent standards for which operations to carry out first in order to evaluate a specific mathematical expression.
For instance, since the advent of contemporary algebraic notation, multiplication has been given a higher priority than addition in mathematics and most computer languages.
As a result, 1 + (2 × 3) = 7, rather than (1 + 2) × 3 = 9. is the value assigned to the expression 1 + 2 × 3. BODMAS was first used in the 16th and 17th centuries when addition and multiplication were given priority. BODMAS could only is used as a superscript to the right of their base.
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What postulate proves triangle congruence?
*
25 points
Captionless Image
AAS
SAS
SSS
ASA
The postulate that proves that the triangles are congruent is: SAS congruence postulate.
How to Apply the Side-angle-side Congruence Postulate (SAS)?The SAS congruence postulate states that when two triangles have a pair of included congruent angles, and two pairs of corresponding sides that are congruent, then both triangles are congruent.
In the triangles given, we have:
Two pairs of corresponding sides that are congruent - BL ≅ PF and BG ≅ PX
A pair of included congruent angles - <B ≅ <P.
This means both triangles are congruent by SAS.
Therefore, the postulate that proves that the triangles are congruent is: SAS congruence postulate.
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Malia and some of her friends are going rock climbing this weekend. In preparation, Malia purchased 8 sports drinks to bring, including 6 peach flavored drinks.
If Malia randomly chooses to place 4 drinks in the red cooler, what is the probability that all of them are peach flavored?
Write your answer as a decimal rounded to four decimal places.
Based on the fact that there are 8 sports drinks and 6 peach flavored drinks, the probability that all 4 drinks picked by Malia would be peach flavored is 0.2143.
What is the probability?The probability that all 4 drinks will be peach flavored can be found as:
= Probability of first drink being peach x Probability of second drink being peach + Probability of third drink being peach + Probability of fourth drink being peach
The probability of the drinks being peach flavored is:
= 6/8 x 5/7 x 4/6 x 3/5
= 0.2143
In conclusion, the probability that all the drinks are peach flavored is 0.2143.
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What is the value of BC.
Answer:
BC = 13
Step-by-step explanation:
x + 10 + x + 14 = 22
2x + 24 = 22
2x = -2
x = -1
BC = x + 14 = -1 + 14 = 13
If the ladder slipped so that the foot was 2 m from the wall, how far down the wall did the ladder slip?
Answer:
e foot
Step-by-step explanation:
Answer:
How far down the wall did
the ladder
Step-by-step explanation:
he graph represents the heights of two climbers on a climbing wall over a 12-minute time period.
A graph where the horizontal axis shows time (minutes), numbered 1 to 12, and the vertical axis shows height (feet) numbered 2 to 24. The line labeled Brynn's climb begins at 0 feet in 0 minutes, to 15 feet from 5 to 7 minutes, to 0 feet in 10 minutes. The line labeled Abby's climb begins at 4 feet in 0 minutes, to 14 feet from 4 to 6 minutes, to 22 feet in 8 minutes, to 0 feet in 12 minutes.
How high did Abby climb above her original starting position?
8 feet
15 feet
18 feet
22 feet
can someone help me really quick
Answer:
ain't no way you need help my bou
2x-y + 2z = -6
-3y +z = -2
2x-3z=4
Enter your answer, in the form (z, y, z), in the boxes in simplest terms
{x, y, z} = { -16/13, -10/13, -28/13}.
HELP URGENT!! the data set for a random sample of 10 soccer players heights compared to their shoe sizes is summarized in the table.
questions included in the photo.
Part A: The equation of least squares regression line is
ŷ = 0.4684X + 64.69888
Part B: The residual that we have here is - 1.382
Part C: Residual refers to the difference between the observed value and the predicted value
How to solve for the residualSum of X = 102.5
Sum of Y = 695
Mean X = 10.25
Mean Y = 69.5
Sum of squares (SSX) = 33.625
Sum of products (SP) = 15.75
Regression Equation = ŷ = bX + a
b = SP/SSX = 15.75/33.63 = 0.4684
a = MY - bMX = 69.5 - (0.47*10.25) = 64.69888
ŷ = 0.4684X + 64.69888
Residual = observed - predicted
The observed = 68
The predicted = 0.4684 x 10 + 64.69888
= 4.684 + 64.69888
= 69.382
residual = 68 - 69.382
= -1.38
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solve following expressiong when
k = 12
answer right for 5 star and brainliest
(4k+2) divided by 10
Answer:
5
Step-by-step explanation:
Given expression:
(4k + 2) ÷ 10when k = 12
substituting k = 12 in equation
⇒ (4(12) + 2) ÷ 10
⇒ (48 + 2) ÷ 10
⇒ 50 ÷ 10
⇒ 5
HELLO i’ll give BRAINLIEST TO THE PERSON WHO ANSWERS!!!
From the numeric value of the formula, the tuition and fees for the school year ending in 2010 was of $26,270.
How to find the numeric value of a function?The numeric value of a function is found replacing each instance of x by the value that we want to find.
For this problem, the cost function is given by:
T(x) = 26x² + 806x + 15610.
In which x is the number of years after 2000.
Hence the cost in 2010 will be given by:
T(10) = 26(10)² + 806(10) + 15610 = $26,270.
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sa finished 30% of his homework in 27 minutes. How many more minutes will it take Isa to complete his homework, assuming that he works at the same pace?
A. 63 minutes
B. 67 minutes
C. 70 minutes
D. 90 minutes
Answer:D
Step-by-step explanation:
|||
=
Knowledge Check
In the figure below, j Il n. Find the values of y and z.
شکر
60°
y4z-20)
Question 5
A
11
Z =
0
Answer:
y=120
z=20
Step-by-step explanation:
angle below y is 60° because of corresponding angles
y=180-60=120
y+(4z-20)=180(angles in a straight line)
120+4z-20=180
100+4z=180
4z=180-100
4z=80
z=80/4
z=20°
which surveys illustrate an example of qualitative data? check all that apply.the time, in minutes, it took students to finish their examsthe eye color of students involved in after-school activitiesthe characteristics of different types of birdsthe scores on the last examthe weights of different books
The following illustrate the examples of Qualitative data: (1) the eye color of children participating in after-school activities and (2) the traits of various bird species.
What is Qualitative data?Data that cannot be quantified or expressed in numbers are referred to as qualitative data.
Now,
(1) The time, in minutes, it took students to finish their exams: It is quantifiable data since the number of minutes it took pupils to complete their tests can be measured.
(2) The eye color of students involved in after-school activities: Since the eye color of students participating in after-school activities cannot be quantified, the information is qualitative.
(3) The characteristics of different types of birds: The characteristics of many bird species can never be quantified quantitatively; therefore, the information is qualitative.
(4) The scores on the last exam: It is quantitative data since the results of the last exam may be quantified and expressed in numbers.
(5) The weights of different books: It is quantifiable data because it is possible to measure the weights of various books.
Hence, the eye color of children participating in after-school activities and the traits of various bird species are examples of qualitative data.
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Brandon works at the waterpark on the weekends. Last Saturday, he worked 7 11/12 hours. On Sunday, he worked 84% of the hours he worked on Saturday. How many total hours did he work last weekend?
If Brandon works at the waterpark on the weekends. Last Saturday, he worked 7 11/12 hours. On Sunday, he worked 84% of the hours he worked on Saturday, The total hours that he would have to work on the weekend is 6.65 hours
How to solve for the number of hoursThe total numbers of hours that was worked can be solved by
7 11/12 hours * 84%
= 95 / 12 * 84 / 100
= 7980 /1200
= 6.65
Therefore we can say that if Brandon works at the waterpark on the weekends. Last Saturday, he worked 7 11/12 hours. On Sunday, he worked 84% of the hours he worked on Saturday, The total hours that he would have to work on the weekend is 6.65 hours
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Answer:
6 hours and 39 minutes is the correct answer.
Step-by-step explanation:
So, set up your problem...
STEP 1: 84% out of 100%, or 84/100
STEP 2: 7 11/12 is a mixed number, so to make solving easier, make it an improper fraction: 95/12
- 7 11/12
- 7 × 12 = 84 + 11 = 95
- Keep the denominator (12)
- 95/12 is now an improper fraction.
STEP 3: Multiply 95/12 × 84/100 = 6.65
STEP 4: Convert to hours...
- Note that 6.65 hours and 6:65 is not the same. 6.65 hours with the decimal point is 6.65 hours in terms of hours. 6:65 with the colon is 6 hours and 65 minutes.
- Start by dividing up what is before and after the decimal point. 6 = hours, .65 = fractional hours
- To convert from 6.65 decimal hours to hours and minutes, we need to convert the .65 fractional hours to minutes.
- Since there are 60 minutes in an hour, you multiply the .65 fractional hours by 60 to get minutes. .65 × 60 = 39 minutes.
So, in conclusion, the correct answer to your question is... 6 hours and 39 minutes.
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What is the equation of the line?
y = 3/4 x + 1
y = 4/3 x − 1
y = 4/3 x + 1
y=3/4x−1
Answer: 15
Step-by-step explanation:
PLease Solve I will give 15 points its all i have
Answer:
qw1
Step-by-step explanation:
Pls help me with both of these
The algebraic expression for the phrase "the quotient of y and 6" is y / 6
The difference of -3 - 4 is -7.
How to solve algebraic expression?The algebraic expression of the following phrase "the quotient of y and 6" is as follows:
Quotient is a quantity produced by the division of two numbers.
Therefore, the algebraic expression for the phrase "the quotient of y and 6" is y / 6
The difference of -3 - 4 can be calculated as follows:
The difference of -3 - 4 is -7.
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Andrew made an error in determining the polynomial equation of smallest degree whose roots are 3, 2+2i and.
Review Andrew’s work, identify the error and correct all work from that point forward that is affected by this error. Include at least one sentence explaining his error. Use proper mathematical vocabulary, appropriately.
The supplied roots' polynomial equation is x³-7x²+20x-24=0.
A polynomial equation is defined as:A polynomial equation is one in which a polynomial is set to zero. It is an equation composed of variables, non-negative integer exponents, and coefficients, as well as operations and an equal sign. It has various exponents. The highest one represents the equation's degree. To be a polynomial equation, the variable in the equation must contain only non-negative integer exponents. Specifically, variable exponents should be non-negative and neither negative nor fractional.
According to the given data:Given that, solution polynomial equation of the least degree has roots of 3, 2+2i, and 2-2i.
Now, x=3, x=2+2i and x=2-2i
x-3, x-2-2i and x-2+2i
So, the polynomial equation is (x-3)(x-2-2i)(x-2+2i)=0
=(x-3)(x(x-2-2i)-2(x-2-2i)+2i(x-2-2i))=0
=(x-3)(x²-2x-2xi-2x+4+4i+2xi-4i-4i²)=0
=(x-3)(x²-2x-2x+4-4i²)=0
=(x-3)(x²-4x+4+4)=0 (∵i²=-1)
=(x-3)(x²-4x+8)=0
=x(x²-4x+8)-3(x²-4x+8)=0
=x³-4x²+8x-3x²+12x-24=0
= x³-7x²+20x-24=0
The supplied roots' polynomial equation is x³-7x²+20x-24=0.
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