G-2/2-24 simplify the variable

In the context of hypothesis testing, a test statistic is; c. A value, determined from sample information, used to test the null hypothesis.

Hypothesis testing is defined as the method that is used to find the probability of the hypothesis to be proved in the future on the basis of the small population sample. The null hypothesis is said to be a hypothesis where no important difference between the random variables

The test statistic is defined as a value that is computed from the sample data that is used when making a decision about whether or not to reject the null hypothesis.

Looking at the options and based on the definitions above, option C adequately describes the test statistic.

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The null hypothesis would state that the population mean number of cups of coffee that women would drink 32% the population mean number cups of coffee than men drink.

The term "percentage" comes from the Latin phrase "per centum," which means "by the hundred." With 100 as the denominator, percentages are fractions. In other words, it is a relationship where the value of the entire is always assumed to be 100.

Percentage is a fraction or a ratio in which the value of whole is always 100. For example, if Sam received 30% on his math test, he received 30 points out of 100. It is expressed as 30/100 in fractional form and 30:100 in ratio form.

A certain number or quantity in every hundred is referred to as a percentage. It is a fraction, and the denominator is 100.

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a) The experimental units are the Acacia Trees.

b) The treatments carried used are; active beehives, empty beehives and no single beehive.

c) The response variable is the damage that the elephants caused to the trees.

Experimental design is defined as the process of carrying out research in a manner that is objective and controlled such that precision is maximized and then specific conclusions can possibly be drawn regarding a hypothesis statement. Generally, the purpose of this is to establish the effect that a factor or independent variable has on a dependent variable.

From this question, it is very clear that the experimental units are the Acacia Trees. This is because they are the primary interest or objective of the research.

The treatments carried out here are the active beehives, empty beehives and no single beehive.

The response variable is defined as the result of the experiment where the explanatory variable is manipulated. In this case, the response variable is the damage that the elephants caused to the trees.

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Answer: the student forgot to multiple by right side of equation 2 in line 2

Step-by-step explanation: your welcome :)

The equation of the new function is g(x) = 4(2ˣ)

The exponential equation is given as

f(x) = 2ˣ

Then, we have the transformation to be:

Vertically stretch by a scale factor of 4

The scale factor can be represented as k

So, we have

k = 4

The rule of vertical stretch by a scale factor of k is represented a

g(x) = kf(x)

So, we have

g(x) = 4 * 2ˣ

This gives

g(x) = 4(2ˣ)

Hence, the equation is g(x) = 4(2ˣ)

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Answer:

(-2,-4)

Step-by-step explanation:

3x+2=-2x-8

+2x.    +2x

5x+2=-8

   -2. -2

5x=-10

/5.  /5

x= -2

y=3(-2)+2

y=-6+2

y= -4

(-2,-4)

Hopes this helps please mark brainliest

The domain when the maximum number of people allowed in the movie theater is 60 people would be: B. 0 ≤ x ≤ 60.

In Mathematics, a domain can be defined as the set of all real numbers for which a particular function or relation is defined. This ultimately implies that, a domain is the set of all possible input values (x-values) for a function while a range is the set of all possible output values (y-values) of a function.

Since the maximum number of people that are allowed in the movie theater is 60 people, we can logically deduce that the input values (x-values) for its function is less than or equal to 60. Therefore, the domain of the function on this graph is given by:

Domain = [0, 60]

Domain = 0 ≤ x ≤ 60.

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Complete Question:

The graph represents the money collected at the movie theater on Saturday. Find the domain when the maximum number of people allowed in the movie theater is 60 people.

40 ≤ y ≤ 160

0 ≤ x ≤ 60

40 ≤ x ≤ 160

0 ≤ y ≤ 60

Answer:

the answer is 0 is less than or equal to x which is less than or equal to 60

Step-by-step explanation:

Domain is the x value

Since the max amount of people is 60, and people is x value the answer i put above is a reasonable domain.

Hope this helps!

Answer: 34.5

Step-by-step explanation:

    To find the constant of proportionality between miles driven and number of gallons used, we will divide the miles driven by the gallons used.

517.5 / 15 = 34.5

1138.5 / 33 = 34.5

1242 / 36 = 34.5

Total kinetic energy that is generated will be 2025 joules

What is kinetic energy?

The K.E. of an object is that the energy that it possesses because of its motion. it's outlined because the work required to accelerate a body of a given mass from rest to its expressed velocity.

Main body:

According to question :

mass = 2 kg

velocity = 45 m/s

formula for kinetic energy = (1/2) mv²

substituting these values in formula,

K.E. = (1/2) 2* 45²

K.E. = 45²

K.E. = 2025 joules.

Hence kinetic energy generated is 2025 joules.

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The proof that if bisector of an exterior angle of a triangle is parallel to a side of triangle, triangle is isosceles is shown below .

In the question ,

it is given that ,

the angle bisector of the exterior angle of a triangle is parallel to a side .

we have to prove that the triangle will be an isosceles triangle .

In the triangle ABC given below , AB is extended to AD ,

SO , the exterior angle will be angle DAC ,

let AE be the bisector of the the angle .

So , the equal angles are angle DAC and angle EAC .

it is given that AE is parallel to BC , where BC is base .

we know that ,

if any line intersects two parallel lines then every pairs of alternative  Interior angles are same and also their corresponding angles are equal .

Here AE is parallel to BC and line BD intersects them ,

So , angle ABC = angle DAE    ( corresponding angles )

angle ACB = angle EAC   ( alternate angles )

Now , as AE is the bisector of angle DAC ,

we have , angle DAC = angle EAC

So , we get , angle ABC = angle ACB .

In triangle triangle ABC two angles are equal so , the sides opposite to angles to angles will also be equal

that means , AB=AC

Hence , the given Triangle is an isosceles triangle .

Therefore , it is proved that the triangle ABC is an isosceles triangle .

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The expression that can be use to represent the amount owned on rental is 0.1x + 25y

Rick rents a car from a company that charges him $25 per day plus 10 cents per mile driven.

The expression that can be use to represent the amount owned on rental can be represented as follows:

let

x = number of miles driven

y = number of days

Let's convert cent to dollars

100 cents  = 1 dollars

10 cents = ?

cross multiply

amount in dollars = 10 / 100 = 0.1 dollars

Therefore,

the expression = 0.1x + 25y

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The probability mass function (pmf) of X formally displays the likelihood of events where X=xk.

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true.

An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

The likelihood that an event will occur increases with its probability. A straightforward illustration is tossing a fair (impartial) coin.

The chance of both outcomes ("heads" and "tails") is equal because the coin is fair, "heads" is more likely than "tails," there are no other conceivable outcomes, and the likelihood of either outcome is half .

According to our question-

We can list the components of RX if X is a discrete random variable since RX is a countable set. In other words, RX=x1,x2,x3,... can be written.

Note that the random variable X here has the potential values x1, x2, x3

While we typically use capital letters to designate random variables, we typically use lowercase letters like x, x1, y, and z to denote the integers in the range.

We are interested in learning the probability that a discrete random variable, X, equals a certain value, xk.

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128 were Daily News readers. 19 read neither while 35 read both. Weekly Gazette A marketing class conducted a survey of 270 shoppers at a mall to find out how many of them read the Weekly Gazette and how many the Daily News.

What is News readers?

150 attendees were surveyed by a marketing class to find out how many read the Weekly Journal and how many the National News. In this section, word problems will be solved using Venn diagrams. The areas of a Venn diagram that indicate quantities as opposed to will have numbers in them. Confidence interval for difference of two formula You may have read statements like the ones below in newspapers, for instance. law in numerous nations.

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The diameter of a dime tells us the circumference of a dime is approximately 299 times larger than human hair.

The diameter of an object is used to calculated the circumference or area of the object. This also helps us to know the width of a circular object.

In this problem, the diameter tells us about the length of the each quantity.

The diameter of a dime tells us how wide the coin is and the diameter if a hair tells us the width of the hair.

Comparing both values

Dime = 17.91mm

Hair = 6.0*10^-2

Divide both quantity together.

17.91 / 6.0*10^-2 = 298.5≅299

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Answer:

y=3x-10

Step-by-step explanation:

y=mx+b

2=3(4)+b

2=12+b

b=-10

y=3x-10

This equation x + (x + 1) + (x + 2) = negative 21 will be used.

Let the first Number is x.

We have to take 3 consecutive integers.

second Number is x+1

third Number is x+2.

Sum of these 3 consecutive integers is x+(x+1)+(x+2).

Sum of these 3 consecutive integers is given as negative21.

so we can write  x+(x+1)+(x+2)=negative 21.

by using above equation we can find the value of 3 numbers.

So the final equation will be x + (x + 1) + (x + 2) = negative 21.

Given Question is incomplete, Complete Question here:

Three consecutive integers have a sum of –21. Which equation can be used to find the value of the three numbers? x + x + x = negative 21 x + 2 x + 3 x = negative 21 x + (x + 1) + (x + 2) = negative 21 x + (x + 2) + (x + 4) = negative 21

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The expression used to represent the given phrase is given by x =5 and

y = 26 + 8x and value of the given expression when x =5 is equal to

y = 66.

As given in the question,

Given phrase is:

x equal 5

y equals 26 more than the product of 8 and a number x

Required expression to represent the given phrase is:

x = 5

y = 26 + 8x

Value of the expression y = 26 + 8x when x = 5 is given by :

y = 26 + 8( 5 )

⇒ y = 26 + 40

⇒ y = 66

Therefore, the required expression for the given phrase is x =5 and

y=26 +8x , the value of the expression y = 66 when x = 5.

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Answer:

[tex]A=20 units^2[/tex]

Step-by-step explanation:

I would separate out the shape into two equal right triangles over a square.  The total area can then be found by adding these areas together:

[tex]A_t=2A_\Delta +A_s\\A_t=2(\frac{1}{2}bh)+(s)^2\\b=2 units\\h=2units\\s=4units\\A_t=2[\frac{1}{2}(2units)(2units)]+(4units)^2\\A_t=4units^2+16units^2\\A_t=20units^2[/tex]

Answer:

[tex]y=\frac{2}{3}x+1\frac{1}{3}[/tex]

Step-by-step explanation:

when a line is parallel the slope is the same for both

y=mx+b is slope intercept form where m is slope and b is intercept

we know the slope is 2/3 so to find b we just fill it in with coordinates

-2=2/3(-5)+b

-2=-10/3+b

+10/3 +10/3

4/3=b

y=2/3x+4/3

hopes this helps please mark brainliest

Answer:

f(x) = 3x + 4

f(4) = 3(4) + 4 = 12 + 4 = 16

main answer:  line integral  by the two following methods [tex]xy dx x^{2} dy c[/tex]

supporting answer: A line integral in Calculus is an integral in which the function to be integrated is evaluated along a curve. A path integral, curve integral, or curvilinear integral are all names for a line integral. This article will go over the definition of the line integral, formulas, examples, and how to use line integrals in real life

body of the answer : given

line integral xy dx x^{2} dy c

c is counter clockwise

according to greens theorem

∫ₐpdx+qdy

∫∫ₓdq/dx-dp/dq

we evaluate the 1st line integral from (0,0) to (0,4)

an equation  of straight  line joining (0,0) and (0,4)in the xy plane is y=4

l₁=∫⁰₄ x(4)dx+ x²(4)=∫⁰₄ 4xdx+4x²

=[4.x²/2+4x³/3]₄⁰

=4(16)/2+4(64)/3

=32+256/3

=117

we evalute second integral from (0,4)to (3,0)

an equation of straight line joining (0,4)and(3,0)in xy plain is x=3 dx=0

the second line integral now becomes

l₂=∫³₀ (3)y(0)+3²dy

=∫³₀ 9dy

=27

we now evaluate the third line integral from  (3,0) to (3,4)

an equation  of straight line joining (3,0)and (3,4) in xy plain is y=4,dy=0

the third integral now becomes,

l₃=∫³₃ x(0)dx+ x²(4)

=∫³₃ 4x²

=4*9=36

36-36=0

now evalute the 4th line integral from (3,4) to(0,0)

an equation of straight line joining from (3,4) to (0,0) in xy plane is x=0

∫₄⁰(3)y(0)+ 9dy

∫⁰₄ 9dy

=9*4=36

sum of all line integral=36+27+0+117

=180

final answer:therefore ∫ₐ pdx +qdy

∫∫ₓdq/dx-dp/dq=180

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Line integral by the two following methods  is 180

What is integral calculus?

A line integral in Calculus is an integral in which the function to be integrated is evaluated along a curve. A path integral, curve integral, or curvilinear integral are all names for a line integral. This article will go over the definition of the line integral, formulas, examples, and how to use line integrals in real life

Given

line integral xy dx x^{2} dy c

c is counter clockwise

According to greens theorem

∫ₐpdx+qdy

∫∫ₓdq/dx-dp/dq

We evaluate the 1st line integral from (0,0) to (0,4) an equation of straight  line joining (0,0) and (0,4)in the xy plane is y=4

l₁=∫⁰₄ x(4)dx+ x²(4)=∫⁰₄ 4xdx+4x²

=[4.x²/2+4x³/3]₄⁰

=4(16)/2+4(64)/3

=32+256/3

=117

We evaluate second integral from (0,4) to (3,0)

an equation of straight line joining (0,4) and (3,0) in xy plain is x=3 dx=0

the second line integral now becomes

l₂=∫³₀ (3)y(0)+3²dy

=∫³₀ 9dy

=27

We now evaluate the third line integral from  (3,0) to (3,4)

an equation  of straight line joining (3,0)and (3,4) in xy plain is y=4,dy=0

the third integral now becomes,

l₃=∫³₃ x(0)dx+ x²(4)

=∫³₃ 4x²

=4*9=36

36-36=0

Now evaluate the 4th line integral from (3,4) to(0,0)

an equation of straight line joining from (3,4) to (0,0) in xy plane is x=0

∫₄⁰(3)y(0)+ 9dy

∫⁰₄ 9dy

=9*4=36

Sum of all line integral=36+27+0+117

=180

Therefore ∫ₐ pdx +qdy

∫∫ₓdq/dx-dp/dq=180

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Answer:

-------------------------------

Find y:

Gigi should buy stickers from World Stationery.

Define Expressions.

An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Let's see the information about Stickers4u

Here, pack of 25 stickers is = £2.25

1 sticker cost = 2.25 / 25

                      = £0.09 per sticker

Now, information about World Stationery

Here, pack of 10 stickers is = £1.75

1 sticker cost = 1.75/10

                     = £0.175 per sticker

In this shop, the offer is also there i.e, Buy 1 pack get 1 pack free.

Therefore, Gigi should go with this shop for best possible price.

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Proportional relationship for the given table is true and is define as

Yes, it is proportional because all y over x ratio are equivalent to one fourth.

As given in the question,

Value of x and y in the given table are :

x :  25. 6,  72. 8,  77. 2

y : 6. 4, 18. 2, 19. 3

To check the proportional relationship there should exist constant of proportionality that ratio of corresponding y/x should be constant.

y / x for all the values of x and y:

First values:

y /x = 6.4 / 25.6

      = 0.25

Second values:

y/x = 18.2/ 72.8

    = 0.25

Third values :

y /x = 19.3/ 77.2

      = 0.25

0.25 is equivalent to One fourth ( 1/4).

Constant of proportionality exist = 0.25 or One fourth.

Therefore, in the table first option: yes, it is proportional because all y over x ratio are equivalent to one fourth is correct.

The complete question is:

Determine if the table how a proportional relationship.

x :  25. 6,  72. 8,  77. 2

y : 6. 4, 18. 2, 19. 3

Yes, it is proportional because all y over x ratio are equivalent to one fourth.

Yes, it is proportional because all y over x ratio are equivalent to one third.

No, it is not proportional because 25. 6 over 6. 4 doe not equal 18. 2 over 72. 8.

No, it is not proportional because 18. 2 over 72. 8 doe not equal 77. 2 over 19. 3

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Using a midpoint Riemann sum with 3 subintervals of equal length to approximate [tex]\int^{70}_{10}v(t)dt[/tex] is 2020 and [tex]\int^{70}_{10}v(t)dt[/tex] means the distance in feet, traveled by rocket A from t=0 seconds to t=70 seconds.

From the given question,

An initial height of 0 feet at time t=0 seconds.

The velocity of the rocket is recorded for selected values of over the interval 0 < t < 80 seconds.

(a) Using a midpoint Riemann sum with 3 subintervals of equal length to approximate [tex]\int^{70}_{10}v(t)dt[/tex].

[tex]\int^{70}_{10}v(t)dt[/tex]

A midpoint Riemann sum with 3 sub intervals so, n=3

∆t= (70-10)/3

∆t = 60/3

∆t = 20

Intervals: (10, 30), (30,50), (50,70)

Midpoint:      20        40         60

Midpoint Riemann Sum

[tex]\int^{70}_{10}v(t)dt[/tex] = ∆t[v(20+v(40)+v(60)]

From the table

[tex]\int^{70}_{10}v(t)dt[/tex] = 20[22+35+44]

[tex]\int^{70}_{10}v(t)dt[/tex] = 20*101

[tex]\int^{70}_{10}v(t)dt[/tex] = 2020

(b) Now we have to explain the meaning of v(t)dt in terms of the rocket's flight [tex]\int^{70}_{10}v(t)dt[/tex].

It means the distance in feet, traveled by rocket A from t=0 seconds to t=70 seconds.

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a. [tex]123.1(1.069)^3 \approx 150.4[/tex]

b. [tex]123.1(1.069)^{20} \approx 467.5[/tex]

The linear equation that represents the given situation is 1.75x + 6.25y + 1.50z = 43.50

Total amount that she spent = $43.50

The cost of drinks = $1.75

The cost of sandwich = $6.25

The cost of chips = $1.50

The linear equation is defined as the equation in which the highest power of the variable is 1

The linear equation the represents this situation is

1.75x + 6.25y + 1.50z = 43.50

Where the number of drinks is x, number of sandwiches is y  and the number of chips is z

Hence, the linear equation is 1.75x + 6.25y + 1.50z = 43.50

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Answer:x=9/4 nine over 4 for improper fraction I hope this is helpful mark me brainlist if this sounds good

Step-by-step explanation:

7(x-1)=3x+2

Distribute through the parentheses

7x-7=3x+2

Move the variable to the left-hand side and change its sign

7x-7-3x=2

or Move the constant to the right-hand side and change its sign

7x-7-3x=2

Collect like terms

4x=2+7

And then Add the numbers

4x=9

Divide both sides of the equation by 4

x=9/4

Mixed number is 2 1/4

By using Binomial distribution, it can be calculated that

a) Probability that the operation is successful = 0.8290

b)  Number of sensors expected to operate during the 24 hour period  = 14.25

What is Binomial Distribution?
Binomial Distribution is a discrete type probability distribution whose probability mass function is given by

P(X = x) = [tex]{n \choose x}p^xq^{n-x}[/tex]

p is the probability of success and q is the probability of failure.

a) This is a problem on Binomial Distribution

Probability that the operation is successful = P(X [tex]\geq[/tex] 14)

= P(X = 14) + P(X = 15)

P(X = 14) =

[tex]{15 \choose 14}(0.95)^{14}(1- 0.95)^{15 - 14}\\15 \times 0.95^{14}\times 0.05\\0.3657\\[/tex]

P(X = 15) =

[tex]{15 \choose 15} 0.95^{15}(1-0.95)^{15 - 15} = 0.4633[/tex]

Probability that the operation is successful = 0.3657+0.4633 = 0.8290

b) Number of sensors expected to operate during the 24 hour period = [tex]15 \times 0.95[/tex] = 14.25

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If the inequality which can be used to determine x is 7.25 + 23.25x ≤ 170 and the number of people who can go the amusement park is 7

The maximum amount that he can spend = $170

The cost of the parking ticket = $7.25

The cost of the ticket including tax = $23.25 per person

Then the inequality will be

7.25 + 23.25x ≤ 170

Subtract both side of the inequality by 7.25

23.25x ≤ 162.75

Divide both side of the inequality by 23.25

23.25x / 23.25 ≤ 162.75/23.25

x ≤ 7.006

Hence, the inequality is 7.25 + 23.25x ≤ 170 and 7 people can go to the amusement park

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