3 years ago

The size of each exterior angle of a regular polygon is 18 degrees

Mathematics

1 answer:

Lapatulllka [165]3 years ago

3 0

Answer:

a, 20 side polygond b, the sum of the interior angles is 162°

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Twenty-five percent of the students had forgotten the year of the Declaration of Independence. If 57 students had not forgotten,

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76,

Step-by-step explanation:

If you divide 57 by 3, you get 19. If you times 19 by 4 that is the total number of students there were in all.

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3 years ago

CAN SOMEONE HELP ME WITH THIS PLEASE AND THANK YOU.

tiny-mole [99]

Answer:

six and one over twelve

Step-by-step explanation:

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Whether a net force acts on the object.

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3 years ago

3. Susan earns money by babysitting for relatives and neighbors. She charges $10 per

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2 years ago

In 10 years, a bank account with a 5.25% annual interest rate earned $18,375 as simple interest. What was the principal amount?

sdas [7]

Answer:

The principal amont was $35,000

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

$E = P*I*t$

In which E are the earnings, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

In this problem, we have that:

$E = 18375, t = 10, I = 0.0525$

We want to find P. So

$E = P*I*t$

$18375 = P*0.0525*10$

$0.525P = 18375$

$P = \frac{18375}{0.525}$

$P = 35000$

The principal amont was $35,000

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3 years ago