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3 years ago

A driveway is 25 m long how long is a driveway in centimeters

Mathematics

1 answer:

Novosadov [1.4K]3 years ago

3 0

Answer:

2500

Step-by-step explanation:

The driveway is 25 meters.

In every meter there is 100 centimeters.

So 25 times 100 is 2500 centimeters.

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Evaluate tan(cos^-1(-15/17))

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The answer is -8/15. This is a for sure correct answer.

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Find the measure of each angle please?

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The measure of angle x is 60 degrees so the measure of angles 2x is 120 degrees.

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2 years ago

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Please help with this question!! I need serious help!!

asambeis [7]

Answer:

<h2>The circumference is multipled by 4.</h2>

Step-by-step explanation:

The formula of an area of a circle"

$A=\pi r^2$

The formula of a circumference of a circle:

$C=2\pi r$

The area multipled by 16:

$16A=16\pi r^2\\\\16A=\pi(4^2r^2)\\\\16A=\pi(4r)^2$

The radius has increased fourfold, therefore:

$C'=2\pi(4r)=4(2\pi r)=4C$

The circumference is multipled by 4.

You can calculate the area and check the circumference:

$r=11.6\ in\\\\A=\pi(11.6)^2=132.56\pi\\\\16A=(16)(134.56\pi)=2152.96\pi\ in^2$

Calculate the radius:

$\pi r^2=2152.96\pi$ <em>divide both sides by π</em>

$r^2=2152.96\to r=\sqrt{2152.96}\\\\r=46.4\ in$

Calculate the circumference of both circles:

$r=11.6\ in\\\\C=2\pi(11.6)=23.2\pi\ in$

$r=46.4\ in\\\\C'=2\pi(46.4)=92.8\pi\ in$

$\dfrac{C'}{C}=\dfrac{92.8\pi}{23.2\pi}=4\to C'=4C$

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2 years ago

The volume of a triangular prism is 264 cubic feet. The area of a base of the prism is 48 square feet. Find the height of the pr

Molodets [167]

Height=5.5ft , because the cubic feet of the prisim divded by the square feet of 48 is 5.5 feet

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3 years ago

What is c in 6c + 3y = 18 if y is 2?

Natali [406]

Answer:

c = 2

Step-by-step explanation:

6c + 3y = 18

6c + 3(2) = 18

6c + 6 = 18

6c = 12

c = 2

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2 years ago

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