what is the last step in the six step hypothesis testing procedure? multiple choice question. take a sample, and use it to decide. interpret the result. identify the test statistic. select a level of significance. formulate a decision rule. state null and alternate hypothesis.what is the last step in the six step hypothesis testing procedure? multiple choice question. take a sample, and use it to decide. interpret the result. identify the test statistic. select a level of significance. formulate a decision rule. state null and alternate hypothesis.

Answer:

Let the sides be a and b

a^2 + b^2 = c^2 = 29^2 = 841

a^2 + (a + 1)^2 = 841

a^2 + a^2 + 2 a + 1 = 841

2 a^2 + 2 a = 840

a (a + 1) = 420

21 * 20 = 420     trial and error

So the sides are 20 and 21

20^2 + 21^2 = 29^2

Answer:

True

Step-by-step explanation:

Parallel line do not touch, perpendicular are ones that intersect

Answer:

True

Step-by-step explanation:

These are what parallel lines would look like: l   l

Answer:

ewrwr33r2ewrwrerw3t

Step-by-step explanation:

Answer:

A. 80 degrees

Step-by-step explanation:

the equation at the top tells you that they are the same shape so you just need to find which angle one the first shape is equal to the angle H

For this expression,a=15,b=7 and c=4

Good luck on your assignment

The absolute value is:

Work/explanation:

First, we will evaluate 2-7.

It evaluates to -5.

Now, let's find the absolute value of -5 by using these rules:

\(\sf{\mid a\mid=a}\)

\(\sf{\mid-a \mid=a}\)

Similarly, the absolute value of -5 is:

\(\sf{\mid-5\mid=5}\)

\(\text{To get the total surface area, all we have to do is multiply } 18 \text{ by } 12, \text{which gets us}\)\($18\cdot12 = \boxed{216\text{ ft}^2}\).

\(\text{So, our answer is } \boxed{216\text{ ft}^2}.\)

Larry needs 216 square feet of carpeting for her rectangular living room.

To find the amount of carpeting Larry needs, we need to calculate the area of her rectangular living room. The area of a rectangle can be found by multiplying its length by its width. In this case, the length of the living room is 18 feet and the width is 12 feet.

So, the area of the living room is:

Area = Length * Width

Area = 18 feet * 12 feet

Area = 216 square feet

Therefore, Larry needs 216 square feet of carpeting for her living room.

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Answer:

One real root (multiplicity 2).

Step-by-step explanation:

-3=x^2+4x+1

x^2 + 4x + 4 = 0

Discriminant = 4^2 - 4*1*4 = 0

There is one real root (multiplicity 2).

The equation has 1 real solution.

The quadratic function is given as:

\(-3=x^2+4x+1\)

Add 3 to both sides of the equation

\(3-3=x^2+4x+1 + 3\)

This gives

\(0=x^2+4x+4\)

Rewrite the equation as:

\(x^2+4x+4 = 0\)

A quadratic equation is represented as:

\(ax^2+bx+c = 0\)

By comparison, we have:

\(a =1\)

\(b =4\)

\(c = 4\)

The discriminant (d) is calculated as:

\(d =b^2 - 4ac\)

So, we have:

\(d =4^2 - 4 \times 1 \times 4\)

\(d =16 - 16\)

Evaluate like terms

\(d = 0\)

Given that the discriminant value is 0, it means that the equation has 1 real solution.

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Answer:

They should sell 35 cars next month.

Step-by-step explanation:

From the information given, you know that the dealership sells 20% of their cars in a month and you should calculate 20% of the amount of cars they have in their sales lot to know the amount of cars that they should sell next month:

175*20%=35

According to this, the answer is that they should sell 35 cars next month.

The solutions of the equation sec² x - 4 = 0 are x = π/3 + 2kπ, 2π/3 + 2kπ, 4π/3 + 2kπ, 5π/3 + 2kπ. Therefore, option d. is correct.

We start by solving for x in the equation sec² x - 4 = 0:

sec² x - 4 = 0
sec² x = 4
sec x = ±2

Recall that sec x = 1/cos x, so we can rewrite the equation as:

1/cos² x = 4
cos² x = 1/4
cos x = ±1/2

Now we need to find all values of x that satisfy cos x = ±1/2. These values are:

x = π/3 + 2kπ or x = 5π/3 + 2kπ (for cos x = 1/2)
x = 2π/3 + 2kπ or x = 4π/3 + 2kπ (for cos x = -1/2)

Combining these solutions, we get:
x = π/3 + 2kπ, 2π/3 + 2kπ, 4π/3 + 2kπ, 5π/3 + 2kπ

Therefore, the correct answer is d. pi/3 + 2k pi, 2pi/3 + 2k pi, 4pi/3 + 2k pi, 5pi/3 + 2k pi.

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The statement that proves that angle XWY is equal to angle ZYW is

A. If two parallels are cut by a transverse, then alternate interior angles are congruent

Alternate interior angles are a pair of angles that are formed on opposite sides of a transversal line when two parallel lines are intersected by the transversal.

When a transversal intersects two parallel lines, it creates eight angles. Among these angles, the alternate interior angles are located on the inside of the parallel lines and on opposite sides of the transversal.

In a parallelogram, the two opposite sides are parallel to each other hence the line crossing them will lead to formation of alternate interior angles

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2hours

Step-by-step explanation:

2 hours

Answer:

E

Step-by-step explanation:

Have a good day :)

Answer:

The function that represents the number of squirrels after x years, is described by the following equation:

Why?

From the statement we know that the squirrel's population doubles every six months, it started with 30 squirrels, after six months there are 60 squirrels and six months later (end of one year) there is a population of 120 squirrels.

So, doubles every six months (rate) , and 6 months are 0.5 year

Writing the equation:

Where,

Then, substituting the rate into the equation, we have:

Let's prove that the equation works

Evaluating the population after: 0.5 year, 1 year, 1.5 years and 2 years:

Population after 0.5 year:

Population after 1 year:

Population after 1.5 years:

Population after 2 years:

So, the equation works.

Step-by-step explanation:

Answer: 96 servings.

Step-by-step explanation:
There are 16 cups in 1 gallon, so 3 gallons of punch would be equal to:

3 gallons x 16 cups/gallon = 48 cups

If each serving size is 1/2 cup, then the number of servings in 3 gallons of punch would be:

48 cups / (1/2 cup/serving) = 96 servings

Therefore, 3 gallons of punch would provide 96 servings, assuming each serving size is 1/2 cup.

Answer:

d) no because they are skew

Step-by-step explanation:

e2020

Answer:

It's D

Step-by-step explanation:

A and D are both in different planes, skew lines are line that will never intersect because they are noncoplanar, meaning they are never in  the same plane. If they aren't in the same plane, they can't intersect.

Answer:

Step-by-step explanation:

Use PEMDAS rules

In this problem, according to PEMDAS , inner brackets should be solved the division and finally multiplication.

3[ (15 - 3)² ÷ 4]  = 3[(12)² ÷ 4]   {Now find the square of 12}

                         = 3[144 ÷ 4]    {Now do division}

                         =3 * 36       {Finally multiplication}

                         = 108

The red figure is the original and the green the dilation. We know this because the dilated points are marked with '.

Therefore, we can see that the dilation is a reduction of the original figure. The figure got smaller in size after the dilation.

To find the scale factor, we'll need to look at a few of the points before and after the dilation.

A = (-4, 4)

A' = (-2, 2)

C = (0, 4)

C' = (0, 2)

---The scale factor will be the same on all the points, which is why I have selected only 2 sets of points to look at.

Now, we can figure out the scale factor by thinking about how -4 got to -2, how 4 got to 2. In this case, it is simply dividing by 2. The scale factor must be in multiplication, so we cannot use division in reporting the scale factor, it must be a fraction.

2 / 4 = 1 / 2

The scale factor, therefore, is 1/2.

Hope this helps!

Answer:

a) A reduction.

b) 0.5 or 1/2

Step-by-step explanation:

a) The new points are indicated by the ' next to the letters. By observing the graph, we can see that new points have lessened, and therefore shrank the dialtion, so it is a reduction.

b) On each point, it is reducted by 0.5.

Point A went down from 4 to 2, which is half of 4.

Point B went down from -2 to -1, which is half of -2.

Point C went down from 4 to 2, which is half of 4.

Point D went down from 8 to 4, which is half of 8.

hope this helps!

The sign of displacement is negative.

Displacement: It is defined as the change in the position of an object. It is a vector quantity, means it has both direction and magnitude. It is the shortest distance between two position of an object.

It is the difference between final and the initial position of an object.

Initial position, \(x_i\) = 5m

Final position, \(x_f\) = 3m

Displacement, \(d = x_f - x_i\)  = (3 - 5)m

= -2m

negative sign shows that the direction of the an object is towards negative x-axis.

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Answer:

For finding the inflection points you'll have to put the first derivative equal to zero and solve for x. After you've done that, you can plug in the x you've just found into the original function and find also the y, so you'll find the ordered pair (x,y) of the inflection point(s).

Answer:

i dont think theres engouh info to answer that

Step-by-step explanation:

Answer:

a

2

−

b

2

Since both terms are perfect squares, factor using the difference of squares formula,

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

where

a

=

a

and

b

=

b

.

The statement that could be true for function g is g(-13) = 20

The correct answer is an option (C)

In this question we have been given a function g, has a domain of -20 ≤ x ≤ 5 and a range of -5 ≤ g(x) ≤ 45

Also, g(0) = -2

g(-9) = 6,

We need to select the statement that could be true for g.

A. g(0) = 2

As we have been given g(0) = -2, above statement is false.

B. g(-4) = -11

the range of function is  -5 ≤ g(x) ≤ 45 but -11 < -5

this means, above statement is false.

C. g(-13) = 20

here the values of x and g(x) fall within given intervals of domain and range

so, this statement is true.

D. g(7) = -1

since the domain of g is -20 ≤ x ≤ 5 but here x has value 7 which is false.

Therefore, the statement that could be true for function g is g(-13) = 20

The correct answer is an option (C)

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Answer:

V= 452.16

Step-by-step explanation:

V= πr^2h

V= π6^2(4)

V= π x 36 x 4

V= π x 144

π= 3.14

V= 3.14 x 144

V= 452.16

The value of the integral is (3/4)π.

To evaluate the integral, we need to first express ds in terms of u and v. Since s is a cone with parametric equations x = ucos(v), y = usin(v), z = u, we can express ds in terms of du and dv as follows:

ds = ||r_u x r_v|| du dv

where r_u and r_v are the partial derivatives of r with respect to u and v, respectively, and ||r_u x r_v|| is the magnitude of their cross product.

Taking the partial derivatives and computing the cross product, we get:

r_u = <cos(v), sin(v), 1>

r_v = <-usin(v), ucos(v), 0>

r_u x r_v = <-ucos(v), -usin(v), u>

||r_u x r_v|| = √(u^2 + u^2) = u√2

Therefore, ds = u√2 du dv.

Substituting this into the given integral and using the fact that sin(2x) = 2sin(x)cos(x), we get:

∫∫s xyz ds = ∫v=0^(π/2) ∫u=0^1 u^3 cos(v) sin(v) u√2 du dv

= √2 ∫v=0^(π/2) cos(v) sin(v) dv ∫u=0^1 u^4 du

= √2 (∫sin(2v)/4 dv) (1/5)

= √2 [(1/8) (-cos(π/2) + cos(0))] (1/5)

= (3/4)π.

Therefore, the value of the integral is (3/4)π.

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Answer: 20 apples

Step-by-step explanation:

But to help you start, if 8 apples per every 3 cups, then 6 cups equals 16 apples. So take 6 out of that 7.5 and that leaves you with 1.5. 1.5 is half of 3 cups so i think you do half of the apples so it would be 20  apples for 7.5  cups of flour

Step-by-step explanation:

the answer from the graph is;

(3 , -2)

Answer:

Present Day:

Bob:Rob:Difference

 3   :  4  :        1

 6   : 12  :       2

4 years ago:

Bob:Rob:Difference

    5 : 7 : 2

From the given bar graph, the average number of students who are afraid of spider and snakes is of 15.

A bar graph shows the absolute frequency of each observation in the data-set, that is, the number of times that each variable is observed.

Hence, in the context of this problem, from the bar graph on the image, the number of students that are afraid of each thing are:

The average between two values is given by the sum of the two values divided by two.

Hence, the average number of students who are afraid of spiders and snakes is calculated as follows:

M = (18 + 12)/2 = 30/2 = 15.

The bar graph is missing and is given by the image at the end of the answer.

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Answer:

15

Step-by-step explanation:

got it right on quiz