All categories

4 years ago

The circumference of a circle is 28 inches. What is the length of the radius of this circle?

Mathematics

2 answers:

Elan Coil [88]4 years ago

8 0

The Corrct answer it 28

Yuki888 [10]4 years ago

6 0

Answer:

The real answer is 14

Step-by-step explanation:

You might be interested in

you buy two rolls of wrapping paper. each roll has the same lateral surface area. what is the diameter of roll B?

scoundrel [369]

The area of lateral surface is equal that the perimeter multiply by the length. So the lateral surface area of roll A is 3*π*30=90π. Roll B: d*π*24=24dπ. Put them together: 90π=24dπ. So d=3.75 in.

8 0

3 years ago

Astronomers measure large distances in light years. One light-year is the distance that light can travel in one year or approxim

Firlakuza [10]

Answer:

Option C $=8.4672\times10^{13}$

Step-by-step explanation:

Given : Astronomers measure large distances in light years. One light-year is the distance that light can travel in one year or approximately 5,880,000,000,000 miles.

Suppose a star is 14.4 light years from earth.

To find : How many miles away a star is from earth?

Solution :

In 1 light-year the distance a light can travel is = 5,880,000,000,000 miles.

or = $5.88\times 10^{12}$ miles

In 14.4 lights year the distance is $=14.4\times (5.88\times10^{12})$

$=84.672\times10^{12}$

or $=8.4672\times10^{13}$

Therefore, Option C is correct - $=8.4672\times10^{13}$

5 0

3 years ago

Read 2 more answers

Find the value of c that completes the square. x'2+42x+C

GalinKa [24]

Answer:

441

Step-by-step explanation:

x^2 + 42x + c

Take the coefficient of x

Divide by 2

42/2 = 21

Square it

21^2 =441

This is the value of c

3 0

4 years ago

How to write each number in expanded form using powers of 10. 98,364

Genrish500 [490]

90,000 + 8,000 + 300 + 60 + 4

4 0

4 years ago

Read 2 more answers

Suppose a triangle has two sides of length 2 and 5 and that the angle between these two sides is pi/3. What is the length of the

patriot [66]

We are given two sides of a triangle that are 2 and 5 and the angle between them is pi/3 or 60 degrees. In this case, we can use the cosine law to relate the given dimensions and angle. The cosine rule goes c2 = a2 + b2 - 2abcos C; Substituting, c2 = 4 + 25 - 2*2*5*cos pi/3 ; c2 = 19; c = sqrt 19 = 4.36 units.

4 0

3 years ago

Read 2 more answers