Surface area I will give brainliest to the correct one.

Answer:

4 hours, for $60

Step-by-step explanation:

10 x 4 = 40 + 20 = 60

15 x 4 = 60

Answer:

4 is the answer. My previous answer got deleted.

2 x 4 divided by 2 = 4

Step-by-step explanation:

Answer:

15.7 feet I hope that helped!

Answer:

Yes, it is a solution.

Step-by-step explanation:

Since t ≥ 12 means that t needs to be equal to or greater than 12, t = 12 works as a solution because it is equal to 12.

Answer:

8 mph

Step-by-step explanation:

==========================================================

Explanation:

We'll need to use the circumference formula

C = 2*pi*r

to find the value of the radius r when C = 44

So we get

C = 2*pi*r

44 = 2*3.14*r

44 = 6.28*r

6.28r = 44

r = 44/6.28

r = 7.0063694267516

which is approximate

Then we use this value of r to find the area we need

A = pi*r^2

A = 3.14*(7.0063694267516)^2

A = 154.140127388536

A = 154

The area of the circular placemat is approximately 154 square inches.

Answer:

a ~ 154

a = [tex]\frac{484}{(pi)}[/tex]

Step-by-step explanation:

1. Approach

In this problem, one is given the circumference, the distance around the circle, one must find the area. In order to find the area, one must know the radius of the circle. To find the radius, one has to backsolve from the given circumference, then substitute the derived value into the formula for the area and solve.

2. Find the radius

The formula to find the circumference of a circle is;

[tex]2r(pi)=c[/tex]

Where (r) is the radius, (pi) is (3.1415), and (c) is the circumference.

Substitute in the given values and solve;

[tex]2r(pi) = c\\2r(pi) = 44\\r=\frac{44}{2(pi)}\\r=\frac{22}{(pi)}[/tex]

3. Find the area

Now, one has the value of the radius, substitute it into the formula for the area of a circle and solve;

The formula for finding the area of a circle;

[tex](pi)r^{2}=a[/tex]

Where (pi) is (3.1415), (r) is the radius, and (a) is the area,

Substitute in the value and solve.

[tex](pi)r^{2} = a\\(pi)(\frac{22}{(pi)})^{2}=a\\\frac{(22)^{2}}{(pi)}=a\\\frac{484}{(pi)}=a[/tex]

a ~ 154

The shape of the image of ΔABC following a dilation by a scale factor of [tex]\dfrac{2}{3}[/tex] is the same as the shape of ΔABC but the sizes of the sides of ΔA'B'C' are [tex]\dfrac{2}{3}[/tex] smaller

The correct options with regards the given statements are;

Reasons:

The dilation lengths of the sides of ΔABC are AB, AC, BC

The given scale factor of dilation = [tex]\dfrac{2}{3}[/tex]

Therefore;

The lengths of the sides of ΔA'B'C' are [tex]\dfrac{2}{3} \cdot \overline {A'B'}[/tex], [tex]\dfrac{2}{3} \cdot \overline {A'C'}[/tex], [tex]\dfrac{2}{3} \cdot \overline {B'C'}[/tex]

Which gives;

[tex]\dfrac{\overline{A'B'}}{\overline{AB}}} = \dfrac{\overline{A'C'}}{\overline{AC}}} = \dfrac{\overline{B'C'}}{\overline{BC}}} = \dfrac{2}{3}[/tex]

Given that the ratio of the corresponding sides of ΔABC and ΔA'B'C' are equal, ΔABC is similar to ΔA'B'C' by triangle similarity theorem

Therefore;

∠A = ∠A', ∠B = ∠B', and ∠C = ∠C' by definition of triangle similarity

Which gives;

The statement; The measure of ∠B and ∠B' are equal is True

Second part;

The center of dilation of ΔABC is point A, therefore, the distance between point A and point A' following a dilation is zero

Therefore, given that there is no difference, we have;

The coordinates of point A = The coordinates of point A'

Therefore;

The statement, the coordinates of A and A' are the same is True

Learn more here:

https://brainly.com/question/2584916

Answer:

False

True

Step-by-step explanation:

A dilation multiplies the distance of every point from the center of dilation by the scale factor. So a dilation moves every point except the center of dilation.

Point A is the center of dilation, so the coordinates of A and A′, are the same.

Dilations multiply every length in the figure by the scale factor, so AB and A'B' do not have the same length.

Answer:

2 or 6/3

Step-by-step explanation:

If he runs 2/3 of a mile in 10 minutes all you have to do is multiply it by 3 and you get 6/3 and then you simplify it and end up with 2

Answer:

The rectangle is the only one.

Step-by-step explanation:

1. x>3

2. x≤−48

3. x<−3

4. x > $99.39

5. She will pay more than $99.39 per night

6. w≥200 is the answer to the question to the question

#1

A open dot at 3 and line rightwards

#2

A close dot at -3 and line leftwards.

#3

Open dot at -3 and a line rightwards

#4

As additional cost is there it will raise the price

Open dot at 99.39 and line rightwards

#5

close dot at 200 and line leftwards

Answer:

3.5 feet.

Step-by-step explanation:

r=C/2π

r=22/2π

r=22/6.28

r≈3.5

Answer:

A.) What is your favorite subject this year?

Step-by-step explanation:

A statistical question is a type of question that can't be answered with just one number or value. It has to have different responses for different types of people in different situations. An example of a statistical question is "What do you do afterschool?" because every person does different things afterschool. The only question that has different responses for different people is the first one, "What is your favorite subject this year?".

Answer:

A ... :)

Step-by-step explanation:

Answer:

y=1 and x=1

Step-by-step explanation:

they are just variables they don't mean anything because any number multiplied by 1 is that same number

EX: 57 x 1 = 57

21 x 1 = 21

hope that helped you!

Answer:

b

Step-by-step explanation:

When finding the constant of proportionality, divide the +/- from "y", divided by the +/- from x.

Answer:

It wont load sorry maeby try putting the question again maeby it will work or is it my end.

Step-by-step explanation:

Answer:

Step-by-step explanation:

a=dv/dt

A=15/1=15

B=5/1=5

C=0/2=0

D=-20/1=-20

So from least to greatest

-20, 0, 5, 15

D, C, B, A

Answer:

A student who has many absences has a decrease in grades. As weather gets colder, air conditioning costs decrease. If a train increases speed, the length of time to get to the final point decreases. If a chicken increases in age, the amount of eggs it produces decreases.

Answer:Yes,No,No,Yes

Step-by-step explanation:

Answer:

x=4/7

I hope this helped :)

Answer:

​x-y=-1

3x+y=9

Step-by-step explanation:

Answer1.19 pounds per Dollar

Step-by-step explanation:

its just 25/21

Answer:

B

Step-by-step explanation:

the line plot has an X to represent the amount of times the piece of data occurred I counted 2 x's

Answer:

third choice, 5(x+2y-3)

Step-by-step explanation:

multiply every item in the parentheses by 5.

5x+10y-15= 5(x+2y-3)

Need 20 characters at least, lol