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2 years ago

If the circumference of a circle is 62.8 feet, what is the radius of the circle Use 3.14 for pie

Mathematics

1 answer:

Amiraneli [1.4K]2 years ago

8 0

Answer:

$62.8 = 3.14 \times x \\ x = \frac{62.8}{3.14} \\ = 20$

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PLEASE HELP 30 POINTS TO WHOEVER HELPS I NEED IT QUICK PLEASE HELP

Brut [27]

Answer:

Hi there!

The correct answer is:

a. 27831.05

Step-by-step explanation:

Since they gave you the equation for the line of best fit: y = 1.9x + 21

a. solve for x: 52900= 1.9x + 21

minus 21 on both sides to get 1.9x = 52879

then divide 1.9 on both sides to get x= 27831.05

3 0

2 years ago

Read 2 more answers

Write the equation of a circle centered at the

Fudgin [204]

Answer:

$(x+4)^2+(y+6)^2=100$

Step-by-step explanation:

Given a circle centred at the point P(-4,-6) and passing through the point

R(2,2).

To find its equation, we follow these steps.

Step 1: Determine its radius, r using the distance formula

For point P(-4,-6) and R(2,2)

$\text{Distance Formula=}\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\text{Radius=}\sqrt{(2-(-4))^2+(2-(-6))^2} \\=\sqrt{(2+4))^2+(2+6)^2}\\=\sqrt{6^2+8^2}\\=\sqrt{100}\\Radius=10$

Step 2: Determine the equation

The general form of the equation of a circle passing through point (h,k) with a radius of r is given as: $(x-h)^2+(y-k)^2=r^2$

Centre,(h,k)=P(-4,-6)

r=10

Therefore, the equation of the circle is:

$(x-(-4))^2+(y-(-6))^2=10^2\\\\(x+4)^2+(y+6)^2=100$

3 0

2 years ago

Please help me answer this i need asap

damaskus [11]

Answer:24 xexponet 3 − 5

Step-by-step explanation:

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2 years ago

I need help with this can someone please help me I'm bad at fractions.

Artemon [7]

The answer is 29, I just didn’t on my head right now.

5 0

2 years ago

You estimate that there are 45 marbles in a jar. The actual amount is 82 marbles. Find the percent error. Round to the nearest t

Nataly_w [17]

Answer:

45.1

Step-by-step explanation:

The original amount is 82

But the wrong amount is 45

So we will have to calculate the percentage for the error

82-45

So %error= 37/82 ×100

=3700/82

=45.121~45.1( to nearest tenth)

So the final answer is 45.1%

6 0

3 years ago