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4 years ago

What equation represents a circle with its centre at the origin, and a radius measuring 12 units

Mathematics

1 answer:

Nastasia [14]4 years ago

3 0

Answer:

The equation is x² + y² = 144.

Step-by-step explanation:

This works the same way as before.

You know that at the origin, it equals (0, 0). So, we have no need to insert values for h and k. Therefore, it will just be x² + y² = r².

R is your radius, and this is given as 12 units. So, r = 12. Therefore, r² = 144.

Your final equation is x² + y² = 144.

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Juli2301 [7.4K]

N would equal 28 since 60-32 is 28

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3 years ago

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3 years ago

Simplify the expression below.

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Answer:

(c)

Step-by-step explanation:

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3 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

$F=0.4(-9.8)$

$F=-3.92N$

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6 0

3 years ago

!!!!!NEED HELP ASAP. RIGHT NOW!!!!!!

Nitella [24]

Answer:

15% of 100,000 is 15000, so that would be 100,000 + (15,000*3) = 145,000 after 3 years.

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3 years ago