All categories

3 years ago

Find the circumference of a circle with an area of 615.75 square inches.

1 answer:

3 0

A=pie×radius squared is the area formula of a circle. The circumference formula or a circle is C=pie×diameter. 615.75=(3.14)(radius) squared. Divide both sides by the 3.14. What ever 615.75 divided by 3.14 is-is radius squared. The square root is your radius. The radius is half the diameter, so double what you have right now as the radius to get the diameter. Now since C=pie×diameter, your circumference is your pie×your diameter. Whatever your answer is-is your circumference.

You might be interested in

Which two numbers add up to ___ and multiply to ___?can you help me with this? Multiplied 1 adds to 10

irina [24]

Begin by following the herd . . . call the two numbers 'x' and 'y' .

You said that xy=1 , so y = 1/x

You said that x + y = 10, so x + 1/x = 10

Multiply each side by 'x': x² + 1 = 10x

Subtract 10x from each side: x² - 10x + 1 = 0

Use the quadratic formula to solve this, and the two solutions
that you get for 'x' are also the two numbers 'x' and 'y' .
They are

 9.89898
and
 0.10102

 (rounded)

8 0

4 years ago

Four friends attend a school play

malfutka [58]

Answer:

And then they have fun, by making the actors laugh on stage.

Step-by-step explanation:

lol me

4 0

3 years ago

A company's sales in Seattle were $330,000 in 2012, while their sales in Portland were $235,000 for the same year. Complete the

barxatty [35]

Answer:

A) Seattle's sales were 40.42% larger than Portland's.

B) Portland sales were 28.79% smaller than Seattle's.

C) Portland sales were 71.21% of Seattle's.

Step-by-step explanation:

Since a company's sales in Seattle were $ 330,000 in 2012, while their sales in Portland were $ 235,000 for the same year, the following calculations must be performed to complete the sentences:

235,000 = 100

330,000 = X

330,000 x 100 / 235,000 = X

33,000,000 / 235,000 = X

140.42 = X

Seattle's sales were 40.42% larger than Portland's.

330,000 = 100

235,000 = X

235,000 x 100 / 330,000 = X

23,500,000 / 330,000 = X

71.21 = X

100 - 71.21 = 28.79

Portland sales were 28.79% smaller than Seattle's.

330,000 = 100

235,000 = X

235,000 x 100 / 330,000 = X

23,500,000 / 330,000 = X

71.21 = X

Portland sales were 71.21% of Seattle's.

5 0

3 years ago

Lena collects antique spoons. The line plot shows the length of the spoons in her collection. If she lines up all of her spoons

slavikrds [6]

Answer:

See the figure attached with the complete question, including the line plot.

The size of the middle spoon is 4/4 feet = 1 feet.

Explanation:

Each mark on the line plot represents a spoon and the position on the line indicates its length,

There are two marks over the the lenght 1/4, thus there are two spoons with that length,

One spoon with length 2/4,

One spoon with length 3/4,

Four spoons with length 4/4, and

One spoon with length 5/4

Those are in total 9 spoons. Thus, if she lines up all of her spoons in order size, the fifth spoon is the middle spoon, and its size is 4/4 feet.

6 0

3 years ago

Given h(x) = -3x -2, solve for x when h(x) = 1

nasty-shy [4]

Step-by-step explanation:

Given

h(x) = - 3x - 2

h(x) = 1

-3x - 2 = 1

- 3x = 1 + 2

- 3x = 3

x = - 1

Hope it will help :)❤

8 0

3 years ago