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3 years ago

Hellppp pleaseee Please be quick lol

Mathematics

1 answer:

Elza [17]3 years ago

7 0

Answer:

20(pi)

Step-by-step explanation:

• equation for the circumference of a circle= 2(pi)r

• You are given the diameter ( 20ft) but you need the radius (r) for the equation.

• divide 20 by 2 to get the radius since it is half of the diameter.

• 20/2=10 so c= 2(pi)(10)

• 2(10)=20

• plug in pi and your final answer is 20(pi)

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tangare [24]

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3 years ago

An angle measured 10 degrees less than the measure of its complementary angle. Find the measure of both angles

Mazyrski [523]

Answer:

The measure of the angles are 40 degrees and 50 degrees

Step-by-step explanation:

Let

x ----> the measure of one angle in degrees

y ----> the measure of the complementary angle in degrees

we know that

If two angles are complementary, then their sum is equal to 90 degrees

$x+y=90$ ----> equation A

we have that

$x=y-10$ ----> equation B

Substitute equation B in equation A and solve for y

$(y-10)+y=90\\2y-10=90\\2y=100\\y=50$

Find the value of x

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3 years ago

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scZoUnD [109]

Answer:

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Step-by-step explanation:

2x-7=5

x-7=2.5

x=2.5+7

x=9.5

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3 years ago

1b. $1 6− 1 3 Lin said the value of this expression is $ 1 6. Is she correct? Explain or show your reasoning to prove your an

Brrunno [24]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

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