3 years ago

A wheel has a diameter of 21 inches. About how far does it travel if it makes 30 complete revolutions?

1 answer:

4 0

3 multiplied by 20 is 60

Multiply this by 10 and you get 600

1 Multiplied by 30 is 30

Find the total of the two answers (Which is 630) this is your answers

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The question says make each row of fractions equal by writing a number in each box

ehidna [41]

What is the question? I can't tell by the picture quality.

8 0

2 years ago

What is the product?<br> (6r-1)(- Br-3)

Andru [333]

Answer:

$-6Br^2-18r+Br+3$

Step-by-step explanation:

we have the expression:

$(6r-1)(- Br-3)$

We need to multiply the two terms in the first parenthesis by the two terms in the second parenthesis:

$(6r)(-Br)+(6r)(-3)+(-1)(-Br)+(-1)(-3)$

we solve each term taking into account the law of signs

(-)(-)=+

and

(+)(-)=-

also for the first term we use that $r*r=r^2$

thus we have:

$-6Br^2-18r+Br+3$

it can be simplified a little more if we factor an r of the second and third term:

$-6Br^2+r(-18+B)+3$

4 0

3 years ago

Round 23,879 to the nearest thousand

Vlad [161]

23, 879 to the nearest thousand.

The thousand digit is the 3, and we look at the digit after 3, which is 8, since 8 is more than 5, we round up the 3 to 4.

Therefore 23, 879 to the nearest thousand ≈ 24, 000

I hope this explains it.

3 0

2 years ago

Solve for x. -0.65 +0.45x = 5.4 *

Gre4nikov [31]

Answer: x = 13.444444

4 0

3 years ago

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The prism below is made of cubes which measure 1/3 of an inch on one side. What is the volume?

Leto [7]

Answer:

the answer is A. 10/8 cubic in.

Step-by-step explanation:

V = LWH

length is 2 (1/3 in)

width is 3 (1/3 in)

height is 5 (1/3 in)

V = 2/3 in * 3/3 in * 5/3 in.

V = 10/9 cubic in.

3 0

3 years ago

Read 2 more answers