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2 years ago

Which is the approximate circumference of a circle with a diameter of 60 cm?

1 answer:

8 0

The circumference is the diameter times pi.

$d=60 \ [cm] \\ \\
C=60\pi \approx 60 \times 3.14=188.4 \approx 188 \ [cm]$

The answer is D.

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The dimensions of a right rectangular prism are shown below. 1 in. 1a in. 2 in. in. How many cubes with side lengths of inch are

Dafna1 [17]

First we neeed to find the volume of the rectangular prism

$V=\text{ l}\times w\times h$ $V=1\times1\frac{1}{6}\times2\frac{1}{6}$ $=1\times\frac{7}{6}\times\frac{13}{6}$ $=\frac{91}{36}in^3$

Volume of cube with side lengths 1/6 = 1/6 x 1/6 x 1/6 = 1/216

The number of cubes needed to fill the prism without gaps or overlaps =

$=\frac{91}{36}\text{ divide by }\frac{1}{216}$ $=\frac{91}{36}\times\frac{216}{1}$ $=\frac{19656}{36}$ $=546$

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1 year ago

What is 9c-c equal when u combined like terms

vodka [1.7K]

What is 9c-c equal when u combined like terms?

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3 years ago

Number line , need help! Merry Christmas!

Kruka [31]

Answer:

It is A ( sister helped me if it does not work it is B) \

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Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Hey you! Want to help me out here?

Wittaler [7]

Answer:

ur answer is A

Step-by-step explanation:

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2 years ago

A ball of mass 0.4 kg flies through the air at low speed, so that air resistance is negligible. What is the net force acting on

arsen [322]

Answer:

-3.92 N

Step-by-step explanation:

We are given that

Mass of ball=0.4 kg

Acceleration due to gravity= $-9.8m/s^2$

Because the ball flies against to gravity

We have to find the net force acting on the ball while it is in motion.

We know that when there is no air resistance then the net force acts on the ball is equal to weight of ball.

Net force,F =mg

Substitute the values then we get

$F=0.4(-9.8)$

$F=-3.92N$

Hence, the net force acting on the ball while it is on motion=-3.92 N

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2 years ago