The slope of the relationship is equal to; C. 4.
How to calculate the slope of a line?In Mathematics, the slope of any straight line can be calculated by using this mathematical expression;
Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
From the information provided above, we have the following data points on the line:
Points on x-axis = (-2, -1).Points on y-axis = (-13, -9).Substituting the given points into the slope formula, we have;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (-9 + 13)/(-1 - (-2))
Slope (m) = 4/1
Slope (m) = 4
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the last 2 are so difficult help?
The two mathematical expressions can be written as:-
2) . [ 23 + ( 14 ÷ 2 ) - 20 ] = 5
3) . [ 9² - ( 8 x 4 ) + 26 ] = 75
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
The two expressions will be solved as:-
For the first problem, the numbers are 23,2,14, and 20. The expression will be written as:-
[ 23 + ( 14 ÷ 2 ) - 20 ] = 5
[ 23 + 2- 20 ] = 5
[ 25 - 20 ] = 5
5 = 5
The numbers for the second expression are 8,26,9 and 4. The expression can be written as:-
[ 9² - ( 8 x 4 ) + 26 ] = 75
[ 81 - 32 + 26 ] = 75
[ 49 + 26 ] = 75
75 = 75
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the national center for health statistics (nchs) reports that 70% of u.s adults aged 65 and over have ever recieved a penumococcal vaccination. assume that the pneumococcal vaccination rate applies to an independent random sample of 20 u.s adults aged 65 and over who visit an emergency room (er). compute the probability that exactly 14 adults have been vaccinated. round your answer to three decimal places.
The probability that exactly 14 adults have been vaccinated 0.49
Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e., how likely they are going to happen, using it. Probability can range from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event
the national center for health statistics (nchs) reports that 70% of us adults aged 65 and over have ever vaccination
the pneumococcal vaccination rate applies to an independent random sample of 20 us adults aged 65
the probability that exactly 14 adults have been vaccinated
(14/20)*(70/100)
0.49
The probability that exactly 14 adults have been vaccinated 0.49
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Which excerpt from Click It or Ticket Mobilization Media Campaign bet achieve the purpoe of informing people that eat belt law are enforced nationwide?
Click It or Ticket is a nationwide campaign to enforce seat belt laws and increase seat belt use, supported by major organizations.
Nationwide Seat Belt Enforcement CampaignClick It or Ticket is a nationwide mobilization campaign to enforce seat belt laws and increase seat belt use. It is a joint effort of state and local law enforcement, highway safety offices, and the National Highway Traffic Safety Administration and is supported by national and state-level organizations, including:
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Jolly Roger Peanut Butter cost $3. 59 for a small jar last year. This year the jar costs $4. 19. What is the inflation rate, to the nearest tenth percent?
The inflation rate is 16.71 %
As we know the inflation rate is given by the percentage error.
We know that the formula for the percentage error:
Percentage Error = [ ( | Measured Value - True Value | ) / True Value ] x 100
Let us assume that A represents the inflation rate of percentage error.
Here, the cost of the Jolly Peanut butter is = $ 3.59
So , the original cost = $ 3.59
The increased cost of Jolly Peanut butter is = $ 4.19
So , the new rate = $ 4.19
Now , the inflation rate is given by the formula of percentage error,
Percentage Error = [ ( | Measured Value - True Value | ) / True Value ] x 100
A = [ ( 4.19 - 3.59 ) / 3.59 ] x 100
A = ( 0.6 / 3.59 ) x 100
A = 0.16713 x 100
A = 16.71 %
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find tan theta where theta is the angle shown.
Here we would like to find out the value of given trigonometric ratio . A right angled triangle is given to us with perpendicular= 8 and hypotenuse= 11 . Firstly let's calculate the base using Pythagoras theorem as ,
[tex]\longrightarrow h^2=p^2+b^2\\[/tex]
[tex]\longrightarrow 11^2 = 8^2+b^2\\ [/tex]
[tex]\longrightarrow 121 = 64 + b^2\\ [/tex]
[tex]\longrightarrow b^2=121-64=57\\ [/tex]
[tex]\longrightarrow b =\sqrt{57}=7.54 \\ [/tex]
Now we know that,
[tex]\longrightarrow \tan\theta =\dfrac{p}{b}\\ [/tex]
so substitute the respective values,
[tex]\longrightarrow \tan\theta =\dfrac{8}{7.54}\\ [/tex]
[tex]\longrightarrow\underline{\underline{ \tan\theta = 1.06 \approx \boxed{1}}} [/tex]
and we are done!
Help please!
select all the equations with the same slope
Answer: the second, third and fifth options.
Step-by-step explanation:
When an equation is set up in a y=mx+b format, the slope is always equal to the value m.
let r(x) = f(g(h(x))), where h(1) = 2, g(2) = 4, h'(1) = 4, g'(2) = 4, and "f '(4) = 7". find r'(1). r'(1)
Answer: To find r'(1), we need to use the chain rule of differentiation, which states that:
r'(x) = f'(g(h(x))) * g'(h(x)) * h'(x)
In this case, we know that:
h(1) = 2, g(2) = 4, h'(1) = 4, g'(2) = 4, and f '(4) = 7
Therefore:
r'(1) = f'(g(h(1))) * g'(h(1)) * h'(1) = f'(g(2)) * g'(2) * h'(1) = 7 * 4 * 4 = 112
So, the derivative of r(x) with respect to x at x = 1 is 112
Step-by-step explanation:
Baumgartner, Prosser, and Crowell are grading a calculus exam. There is a true-false question with ten parts. Baumgartner notices that one student has only two out of the ten correct and remarks, "The student was not even bright enough to have fipped a coin to determine his answers. " "Not so clear," says Prosser. "With 340 students I bet that if they all ?ipped coins to determine their answers there would be at least one exam with two or fewer answers correct. " Crowell says, "I’m with Prosser. In fact, I bet that we should expect at least one exam in which no answer is correct if everyone is just guessing. " Who is right in all of this?
According to Bernoulli's theorem, the success rate for the situation is 0.7173.
In math Bernoulli's theorem is states that that random experiment with exactly two possible outcomes, "success" and "failure" in which the probability of success is the same every time the experiment is conducted.
In order to calculate p we must sum the possible permutations of getting 0 success of 10 trials, 1 success of 10 trials, and 2 successes of 10 trials, and divide this sum by the total possible subsets from 10 elements, then it can be written as,
=> P = (10 1) (10 2) (10 1) / 2¹⁰
When we simplify this one, then we get,
=> P = 56/1024
=> P = 0.0547
When we apply the value on Bernoulli's theorem, then we get,
=> B(340, 0.0547, 0) = ( 340 0 ) x (1/1024) x (1023/1024)³⁴⁰
When we simplify this one then we get,
=> B = 0.7173
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What’s the slope and y-intercept of 3x-4y=20
Answer:
Slope:3/4
y-int: (0,5)
Step-by-step explanation:
Slope:
3x-4y=20
-3x -3x
-4y=-3x+20
/-4 /-4
y=3/4x+5
So 5 would be y-int
The Formula for the volume, V , of a pyramid is V = 1/3Bh , where B is the area of the base of the pyramid and h is the pyramid's height. The base of the pyramid shown has a length of 9m and a width of 8m. The height of the pyramid is 12m.
What Is The Volume Of The Pyramid?
A. 136 m^3 B. 256 m^3
C. 288 m^3 D 324 m^3
288 m³ is The Volume Of The Pyramid.
What is volume?The space occupied inside an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity.
Given, The base of the pyramid shown has a length of 9m and a width of 8m. The height of the pyramid is 12m.
Since, The Formula for the volume, V , of a pyramid is V = 1/3Bh ,
where B is the area of the base of the pyramid and h is the pyramid's height.
Since, Area of rectangle = Width *height
Thus, Area of the base = 9 * 8
Area of the base = 72 m²
So, the volume of pyramid (V) = 1/3Bh
the volume of pyramid (V) = 1/3 * 72 * 12
the volume of pyramid (V) = 288 m³
therefore, The Volume Of The Pyramid is 288 m³.
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114 purple pins 361 yellow pins, what percent of the pins where purple?
Answer: About 31%
Step-by-step explanation:
1. Divide 114 to 361
need explanation and steps
The length of the line segment AC and AG will be 6√2 units and 6√3 units, respectively.
What is a Pythagoras theorem?The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.
The Pythagoras theorem formula is given as
H² = P² + B²
AB = 6
BC = 6
CG = 6
Then the length of diagonal AC is given as,
AC² = AB² + BC²
AC² = 6² + 6²
AC = 6√2
Then the length of diagonal AG is given as,
AG² = AC² + CG²
AG² = (6√2)² + 6²
AG = 6√3
The length of the line segment AC and AG will be 6√2 units and 6√3 units, respectively.
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a partial relative frequency distribution is given. class relative frequency a 0.22 b 0.18 c 0.40 d (a) what is the relative frequency of class d? (b) the total sample size is 200. what is the frequency of class d? (c) show the frequency distribution. class frequency a b c d total (d) show the percent frequency distribution. class percent frequency a b c d total
The frequency Asked in the problem are listed below in order:
0.2040200100What is a frequency distribution?To make the information easier to understand, frequency distributions are visual displays that organise and present frequency counts. Absolute frequencies as well as relative frequencies, such as percentages or ratios, can be displayed in frequency distributions.
Given, a partial relative frequency distribution is given. class relative frequency a 0.22 b 0.18 c 0.40 d
Since all relative frequencies add up to be 1.
So,
0.22 + 0.18 + 0.40 + x = 1
x = 0.20
For b)
total sample size * relative frequency = frequency of a class
200*0.2 = 40
For c)
Frequency distribution is calculated as the frequency of a class = total sample size * relative freq.
A = 44
B = 36
C = 80
D = 40
TOTAL = 200
For d)
Percent frequency is calculated as Percent frequency of a class = 100 * relative freq.
A = 22
B = 18
C = 40
D = 20
TOTAL = 100
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Complete question:
4/9 x 7/8 =7/18 what is 7/8x4/9 how do u know without multiplying?
Answer:
7/18.
Step-by-step explanation:
We know that the result is the same because multiplication is Commutative.
The order of the operation does not matter.
What is the area of the triangle?
16 square units
32 square units
8 square units
4 square units
Answer:
8 square units
Step-by-step explanation:
For a triangle,
area = base × height / 2
We need to identify a base and a height for this triangle, and then use them in the area formula above.
Use BC as the base.
A height of a triangle is usually inside the triangle, but not always.
The height of a triangle is a segment that is perpendicular to the a side, or the line containing a side, and intersects the opposite vertex.
In this case, for base BC, the height is a segment from point (-2, 2) to point A. The length of the height is 4.
area = 4 × 4 / 2
area = 8 square units
Doctor Jones starts an appointment every 20 minutes.
Doctor Warholm starts an appointment every 35 minutes.
The first appointment for both doctors starts at 8. 30 am.
What is the next time that they have an appointment start at the same time?
The next time that they have an appointment start at the same time is at 10:50 a.m.
Now, According to the question:
Ist Step
For the same time, take LCM of 20 and 35.
20 = 2 × 2 × 5
35 = 5 × 7
IInd Step
HCF (20, 35) = 2 × 2 × 5 × 7
HCF (20, 35) = 140
Hence, it will take the appointment after 140 minutes which equals to 2 hours 20 minute.
Now, from 8.30 am, the addition of the 2 hours 20 minute gives us 10:50 a.m. which is the next time that they have an appointment start at the same time.
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(a) Find the first four terms, in ascending powers of x, of the binomial expansion of
(1+12x)^1/2
giving each term in simplest form.
(b) Explain how you could use x=1/36 in the expansion to find an approximation for √12
There is no need to carry out the calculation.
a) The binomial expansion of (1+12x)^1/2 is given by:
(1+12x)^1/2 = 1^1/2 + (1/2)(1^-1/2)(12x) + (1/2)(1^-1/2)(-1/2)*(12x)^2 + ...
Binomial expression: what is it?
A polynomial with only terms is a binomial. An illustration of a binomial is x + 2, where x and 2 are two distinct terms. Additionally, in this case, x has a coefficient of 1, an exponent of 1, and a constant of 2. As a result, a binomial is a two-term algebraic expression that contains a constant, exponents, a variable, and a coefficient.
The first four terms, in ascending powers of x, are:
1, (1/2)(12x), (1/8)(12x)^2, (1/16)*(12x)^3
b) To use x=1/36 in the expansion, you would substitute x=1/36 into the expansion, and keep only the terms up to x^3 (the fourth term in the expansion). This will give an approximation of the value of (1+12x)^1/2 when x=1/36.
This will be an approximation of √12 because x=1/36 corresponds to 12x = 1 and the initial value of the expansion is 1 + 12x .
We can use this approximation to approximate square root of 12 and also for other square roots by using appropriate x values.
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Valerie created a table of a proportional relationship that contains the point (3, - 18). which of the tables below could be Valerie’s?
Valerie's table is the table for which the y-value is given by the multiplication of the x-value by -6.
How to model the proportional relationship?A proportional relationship is modeled as follows:
y = kx.
In which k is the constant of proportionality.
The constant for the relationship in this problem is given as follows:
k = -18/3
k = -6.
Hence the relationship is given as follows:
y = -6x.
Missing InformationThe problem is incomplete, hence the answer was given in general terms.
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the median of a sample will always equal the . a. mode b. mean c. 50th percentile d. 75th percentile
The median of a sample will always equal the 50th percentile.
What is median?The median is the value in the middle of a data set, which means that 50% of the data points have a value less than or equal to the median, and 50% of the data points have a value greater than or equal to the median. The statistical median is the number in the middle of a series of numbers. To find the median, sort each number by size; the number in the middle is the median. The median is the value in the middle of a set of data. First, organize and sort the data in ascending order from smallest to largest. Divide the number of observations by two to find the midpoint value. If there are an odd number of observations, round that number up to the nearest whole number, and the value in that position is the median.
Here,
A sample's median will always equal the 50th percentile.
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2. use the pie charts to answer the following questions. a. identify the party that won the highest percentage of votes and seats in 1982. b. describe a change between the percentage of seats won by republicans in 1982 and 2012. c. draw a conclusion about the difference in percentage of votes won and seats
a. The party that won the highest percentage of votes and seats in 1982 is democrat.
b. A change between the percentage of seats won by republicans in 1982 and 2012 is 4%
c. The difference between votes percentage and seats percentage for democrat is 4% and 26% respectively. The difference between votes percentage and seats percentage for republican is 3% and 26% respectively.
The pie chart is given below:
a. We have to identify the party that won the highest percentage of votes and seats in 1982.
We can see that in diagram that gray part of circle shows the vote percentage of democrat and white part of circle shows the vote percentage of republican.
Republican gain votes in 1982 = 52%
Democrat gain votes in 1982 = 49%
So the democrats get the maximum votes in 1982.
b. We have to describe a change between the percentage of seats won by republicans in 1982 and 2012.
In 2012 republican get votes percentage = 48%
In 1982 republican get votes percentage = 52%
So the change between 1982 and 2012 = (52 - 48)% = 4%
c. We have to draw a conclusion about the difference in percentage of votes won and seats.
In 2012 republican get votes percentage = 48%
In 1982 republican get votes percentage = 52%
So, the difference between vote percentage is 4%.
In 2012 republican get seats percentage = 25%
In 1982 republican get seats percentage = 51%
So, the difference between seats percentage is 26%.
In 1982 democrat get votes percentage = 49%
In 2012 democrat get votes percentage = 52%
So, the difference between vote percentage is 3%.
In 2012 democrat get seats percentage = 75%
In 1982 democrat get seats percentage = 49%
So, the difference between seats percentage is 26%.
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How to solve 3x+30+x=10+2x+5x+2
After simplification, the value of x is 6.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The expression is,
⇒ 3x + 30 + x = 10 + 2x + 5x + 2
Now, We can solve as;
⇒ 3x + 30 + x = 10 + 2x + 5x + 2
Combine like terms;
⇒ 4x + 30 = 12 + 7x
Subtract 4x both side,
⇒ 4x + 30 - 4x = 12 + 7x - 4x
⇒ 30 = 12 + 3x
Subtract 12 both side,
⇒ 30 - 12 = 3x
⇒ 18 = 3x
⇒ 3x = 18
Divide by 3;
⇒ x = 6
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g soccer fields vary in size. a large soccer field is 108 meters long and 56 meters wide. what are its dimensions in feet? length ft width ft what are its dimensions in inches? length in width in
The dimension of soccer field is 4252.176 in long and 2204.832 in wide.
The power to which the fundamental quantities are elevated in order to express a physical quantity is known as its dimension.
The dimension of soccer field is 108 meters long and 56 meters wide.
The dimension of soccer field in ft is 354.348 ft long and 183.736 ft in width.
As it is given that 1 m =3.28 ft
Therefore the length of the soccer field in ft is
108*3.281 = 354.348 ft
And width of the field is
56*3.281 = 183.736 ft
We know that 1 ft =12 in
Therefore, the length of the soccer field in inches is
354.348 × 12 = 4252.176 in
And width of the field is
183.736 *12 = 2204.832 in
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The image of a trapezoid is shown.
An isosceles trapezoid with a short base of 3 meters and a height of 5 meters. The portion of the large base from the left vertex to the perpendicular is 4 meters. The portion of the large base from the right vertex to the perpendicular is 7 meters.
What is the area of the trapezoid?
The area of the trapezoid is 42.5 m².
What is trapezium?A trapezium is a quadrilateral with four sides where two sides are parallel to each other.
We have,
Trapezoid:
Short base = 3 m
Height = 5 m
Large base.
= 4 + 3 + 7
= 14 m
Now,
Area of a trapezoid.
= 1/2 x (Short base + Large base) x h
= 1/2 x (3 + 14) x 5
= 1/2 x 17 x 5
= 42.5 m²
Thus,
Trapezoid area is 42.5 m².
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Gordon irons some shirts for staff at a hotel.
The total weight of these shirts is 9. 5 kg.
Each shirt weighs 190 g.
Gordon charges £38 to iron these shirts.
He sees this advert for ironing in a newspaper.
Ironing Palace
Shirts
90p each
Gordon thinks he charges less to iron these shirts than the Ironing Palace would
charge.
Is Gordon correct?
As per the unitary method, Gordon is correct because the Gordon would charge more than Ironing Palace
In math the term unitary method is defined as the value of a single unit and then find the value of more or fewer units by multiplying their quantity with the value of a single unit.
Here we have given that the total weight of these shirts is 9. 5 kg.
And here we have also given that each shirt weighs 190 g.
And Gordon charges £38 to iron these shirts.
And the charges in the Ironing Palace is 90p for each.
Here we have to use the unitary method to calculate the values for each of them,
The Total cost for Gordon is calculated as,
=> 38 x (9.5 / 0.19)
=> 1900
And the total cost for Ironing Palace is calculated as,
=> 90 x 9.5
=> 855
Therefore, while we looking into the values we have identified that Gordon is correct.
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James Harden's 6 year investment of $100,000 accrued 4.2% interest
continuously. About how much money does he expect to receive?
[tex]~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$100000\\ r=rate\to 4.2\%\to \frac{4.2}{100}\dotfill &0.042\\ t=years\dotfill &6 \end{cases} \\\\\\ A = 100000e^{0.042\cdot 6} \implies A = 100000e^{0.252}\implies A \approx 128659.60[/tex]
if the image of point (x,5) is (-6, y) when it is translated by the vector t(6 -2) Find the vaue of x and y
If the image of point (x,5) is (-6, y) when it is translated by the vector t(6 -2), then the values of x = -12 and y = 3.
What is mean by translated by vector?Vector translation is a mathematical concept that describes how an object is moved in space. It involves the use of a vector, which is a quantity that has both magnitude and direction. A vector can represent a displacement, a velocity, an acceleration, or any other physical quantity that has both magnitude and direction.
When an object is translated by a vector, it moves a certain distance in a specific direction. This is usually done by adding the vector to the current position of the object. The magnitude of the vector determines the distance of the translation, while the direction of the vector determines the direction of the translation.
Additionally, the vector can be used to rotate the object. This is done by multiplying the vector by the object’s rotation matrix. The result is the object's new orientation in space, which can be used to orient the object in a different direction.
Vector translation is used in a variety of applications, including computer graphics, robotics, and navigation systems. It i also used in mathematics and physics to represent physical phenomena, such as forces, velocities, or accelerations.
Let the point P(x,5) be translated by the vector t(6,-2).
The image of point P is (x',y') = (x+6,5-2) = (-6,y)
Therefore, x+6 = -6
=> x = -6-6 = -12
Similarly, 5-2 = y
=> y = 5-2 = 3
So the value of x is -12 and y is 3.
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Find the distance between the points (-4,7) and (-4,-5).
Answer: The distance between the points (-4,7) and (-4,-5) is 12.
Step-by-step explanation:
To calculate the distance between two points, we apply the following formula:
[tex]\huge \boxed{\sf{d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} }}[/tex]
The points are:
x₁ = -4y₁ = 7x₂ = -4y₂ = -5To solve the process is:
First we solve what goes inside the parentheses.Then we calculate the result of the parentheses to the power of 2.We add the two results and then we calculate the square root.We substitute the points in the previous formula given, then
[tex]\huge \boxed{\sf{d=\sqrt{(-4-(-4))^2+(-5-7)^2 } }}[/tex]
[tex]\huge \boxed{\sf{d=\sqrt{0^2+(-12)^2 }=\sqrt{0+144} }}[/tex]
[tex]\huge \boxed{\sf{d=\sqrt{144}=12 }}[/tex]
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Examine the two news headlines from real observational studies and determine at least one plausible lurking variable that could explain the cause and effect. Remember, do not argue about the link expressed in the headline, but rather accept the association as true. Your task is to determine the other variable(s) that could be the actual cause(s). b. “Is Gluten the Culprit in Our Fight Against Obesity?”
A plausible lurking variable that could explain the cause and effect in the headline "Is Gluten the Culprit in Our Fight Against Obesity?" is overall diet.
It's possible that individuals who consume a diet high in gluten also consume a diet high in overall calories and processed foods, leading to weight gain and obesity. This would mean that it is not specifically gluten causing the obesity, but rather a combination of factors in the individual's diet.
What is a lurking variable?A lurking variable is a variable that has a connection (e.g., may be correlated) with the response and the explanatory variable but is neither the explanatory variable nor the response variable.
Although it is not taken into account in the study, it might affect how the variables are related.
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Gabriella has a loyalty card good for a discount at her local hardware store. The item she wants to buy is priced at $34, before discount and tax. After the discount, and before tax, the price is $27. 88. Find the percent discount
The percent discount is 18%.
Now, According to the question:
Based on the given condition:
Formulate:
(34 - 27.88) ÷ 34
Calculate the sum or difference:
= 6.12/34
Convert decimal into fraction:
[tex]=\frac{612}{\frac{100}{34} }[/tex]
Divide a fraction by multiplying its reciprocal:
[tex]\frac{612}{100}[/tex] × [tex]\frac{1}{34}[/tex]
Write as a single fraction:
= 612/ (100 × 34)
Cross out the common factor:
= 18/100
= 9/50
Multiply a number to both numerator and denominator:
[tex]\frac{9}{50}[/tex] × [tex]\frac{2}{2}[/tex]
= 18/100
Rewrite a fraction with denominator equals 100 to a percentage: 18%
Hence, the percent discount is 18%.
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PLEASE HELP I HAVE A 46 IN MATH RN...