For each problem, decide whether the circumference of the circle or the area of the circle is
most useful for finding a solution. Explain your reasoning
a. A car's wheels spin at 1000 revolutions per minute. The diameter of the wheels is 23
inches. You want to know how fast the car is travelling. Select)
b. A circular kitchen table has a diameter of 60 inches. You want to know how much fabric is
needed to cover the table top. Select)
c. A circular puzzle is 20 inches in diameter. All of the pleces are about the same size. You
want to know about how many pieces there are in the puzzle.
[ Select)
d. You want to know about how long it takes to walk around a circular pond.
[ Select

Answer:

13

Step-by-step explanation:

So the concept is that co-interior angles add up to 180 in parallel line. This means:

3x + 9 + 9x + 15 = 180

So we solve for x.

12x + 24 = 180 ( What I did was simplifying the equation).

12x + 24 - 24 = 180 - 24

12x / 12= 156 / 12

x = 13

HOPE THIS HELPED

130%

Step-by-step explanation:

(299 - 130)/130 × 100%

= 169/130 × 100%

= 169/13 × 10%

= 13 × 10%

= 130%

Answer:

C 

Reason :

A square possesses reflection symmetry, with four reflection sections,  two on the  side midpoints and two via opposing corners. There are four points in a full 360° movement when the square appears precisely the same. As a result, a square possesses order 4 rotational symmetry about its center of rotation. As a result, the angle of rotation is 90°.

The image has rotational symmetry as well as reflection symmetry. Then the correct option is C.

If a line intersect the shape and the shape look identical on both sides of line, then the line is known as axis of symmetry.

From the graph, we can conclude that the image has rotational symmetry as well as reflection symmetry.

Then the correct option is C.

More about the axes of symmetry link is given below.

https://brainly.com/question/4348533

#SPJ5

Answer:

40

Step-by-step explanation:

Answer:

no.

Step-by-step explanation:

44.50/10=4.45

she can buy four people ice cream

Answer:

yes

Step-by-step explanation:

10+10+10+10

the answer is 40 and she have 4.5

Answer:

5 ways

Step-by-step explanation:

He can draw in 5 ways

Answer:

36

Step-by-step explanation:

I chose 5 and missed it.  Review says correct answer is 36

Answer:

Here’s the answer:

Step-by-step explanation:

The sum of the four numbers divided by 4 is equal to the mean.

the sum/4 = mean

(12 + 50 + 48 + n)/4 = 30

(110 + n)/4 = 30

(110 + n) = 30 × 4

(110 + n) = 120

n = 120 - 110

n = 10

Answer:

Remainder=190

(13 with a remainder of 190)

Step-by-step explanation:

the remainder is the amount leftover after the division. Usually it is swapped with decimals.

Answer:

f = t/m

Step-by-step explanation:

Answer:

[tex]y = {(x + 3)}^{2} - 14[/tex]

Step-by-step explanation:

The original equation

[tex] f(x) = {x }^{2} + 6x - 5[/tex]

vertex form

[tex]y = a {(x - h)}^{2} + k \\ where \: (h. \: k) \: is \: the \: vertex[/tex]

solve for the x coordinate of the vertex, h

[tex]x = h = - \frac{b}{2a} = - \frac{6}{2(1)} = - \frac{6}{2} = - 3 \\ x = h = - 3[/tex]

substitute -3 back into the original equation to solve for y

[tex]y = { (- 3)}^{2} + 6( - 3) - 5 \\ y = 9 - 18 - 5 \\ y = 4 - 18 \\ y = k = - 14 [/tex]

substitute h and k values into the vertex form

a = 1 So we can omit it

[tex]y = {(x - ( - 3)}^{2} - 14 \\ y = {(x + 3)}^{2} - 14[/tex]

Answer:

No

Step-by-step explanation:

Unit rate consists of at least one 1. the unit rate for this would be 1 slice for $1.25

please mark brainliest

Answer:

-1/2? i dunno

Step-by-step explanation:

Answer:

[tex]-1/2[/tex]

Step-by-step explanation:

[tex]-1/2[/tex] is the answer because [tex]-1/2[/tex] is the gradient of the line in the slope. 3 is the y inter. Which is where the line goes over the y-axis.

Hope this helps! (^-^)

Answer:

Weathering

Step-by-step explanation:

Weathering is the physical and chemical breakdown of rock at the earth's surface.  The physical breakdown of rock involves breaking rock down into smaller pieces through mechanical weathering processes. These processes include abrasion, frost wedging, pressure release (unloading), and organic activity.

Answer: I would like to say this is the act of weathering

Step-by-step explanation:

I hope this helps

Have a great day :)

Answer:

A) Dilated 150% then reflected across the x-axis

Step-by-step explanation:

By counting the squares of shape A, you can see that 2 squares = 100% and 1 square = 50%. You can then count 2 squares into shape B (because that is your starting point) and then count the remaining squares, which is 3. 3 squares is equal to 150% so we know there is a 150% dilation.

We can then also see shape A has been reflected across the x-axis to give shape B.

After conversion into exponential equation :

The Correct choices are :

Answer:

Step-by-step explanation:

(5x +x^4) -((3x^4 )+4x), open the parenthesis and distribute the negative sign

5x+(x^4) -(3x^4) -4x, combine like terms

(-2x^4) +x

Answer:

Pythagorean Theorem: c2 = a2 + b2

Find the area by adding the areas of the three triangles. The area of a right triangle is: A = ½bh

Two triangles are identical so you can just multiply the area of the first triangle by two: 2A1 = 2(½bh) = 2(½ab) = ab.

The total area of the trapezoid is : A1 + A2 = ab + ½c2

You multiply both sides by 2 to get rid of the ½: (a2 + 2ab + b2) = 2ab + c2

You subtract out the 2ab: a2 + b2 = c2.

Then what is left is the proof: a2 + b2 = c2

Answer:

i had the answer but lost it ill look into more for u

Step-by-step explanation:

The given table can be represented as :

And here, initial condition is 0

Answer:

9. A, C,

10. A, B,

Step-by-step explanation:

Answer:

Ufiriruutututirjehf3j3ieygrjrufhgvtjtjtbtvtvthghhffhbfbf

Step-by-step explanation:

Gtdkyfjysjtd is a great place to work for and it is a great place to work for and it is a great place to work for and it is a great place to work for and it is a great place to work for and it is a great place to work for and it will is a great a great opportunity for you and your family to help you grow grow your career life and make sure you are the perfect candidate for your career path and your business and your business with your business goals and goals for your business success and your future goals will be successful and you will be succeed with and exceed your expectations of the success of your business and your company is the best choice in your business to provide you with the most opportunity to earn a successful business and successful marketing business opportunity in your business to achieve your goals in achieving your your business goals in the your best business environment for your business needs help and you will be will help us succeed and help us succeed and we will be able for all you can to help you in the process and be successful with 6 7 your own business plan and your work will be a great experience addition for your business needs as well for the future of the year you will are a great 4 5 and a great opportunity and to be successful a part of the your life of the business and 907 your of the best and the best in the world of your business with and without you being able to spend a lot of time with your family 73 and I hope that you will be able to able to make some it would be a miss 3rd 3 and we you will be able and not only do you want to know do not worry about worry or loss of any other products or services that 2021 your business and your family is not the most important thing to you or your customers and your business needs help to with the best the lord has done in the past to help you make your life easier to

Answer:

45

Step-by-step explanation:

The question gives us two points,  (-7,2) and (21,-10), from which we can find the slope and later the equation of the line.

Finding the Slope  

The slope of the line (m) = (y₂ - y₁) ÷ (x₂ - x₁)      

                                        =  (2 - (- 10)) ÷ (-7 - 21)    

                                        =   - ¹²/₂₈

                                        =   - ³/₇

Checking my answer:  

We can use the slope we found and a point to write the equation of a line. If the line passes through both points, then we calculated the slope correctly.  

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:

                                ⇒  y + 10 = - ³/₇ (x - 21)

To test my answer, I have included a Desmos Graph that I graphed using the information provided in the question and my answer.

Answer:

y^2 + (x - 2)^2 = 49

Step-by-step explanation:

Answer:

$5

Step-by-step explanation:

if 5 leis are worth $25, each lei would be 25/5

25/5 is 5/1, when the denominator is one, that is unit price

the unit price is $5

30*2=15miles per min. x*y=d.

Answer:

The equation is

[tex]f(x) = - \frac{2}{30} x + 2[/tex]

Step-by-step explanation:

since the function is

[tex]f(x) = - \frac{2}{30} x + 2[/tex]

The y-intercept is 2 and the x-intercept is 30.

since the treadmill is counting down the slope of the function would be negative. she set the treadmill for 2 minute walk so at 0 minutes she has 2 minutes left. as the treadmill counts down at the 30-minute mark she will have zero minutes left.

Answer:

Step-by-step explanation:

124 + 76 = 200 ☺

Answer:

780

Step-by-step explanation:

35 out of 52 people voted. You’d have to divide the total votes, 525 by the people that voted, so 35 which would equal 15.

Then, multiply 15 by the total of people that didn’t vote, 52, which would equal 780.

Answer:

780

Step-by-step explanation:

Answer:

[tex]answer = 90[/tex]