3 years ago

A triangle has angle measurements of 30°, 70°, and 80°. What kind of triangle is it?

Mathematics

1 answer:

Juliette [100K]3 years ago

5 0

The answer is acute triangle because none of the angles are greater than 90°

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Find the sum that amounts to Rs 9,144 in 3 years at 9% per year simple interest.

Hunter-Best [27]

Given:

Amount = Rs. 9,144

Time = 3 years.

Rate of simple interest = 9%

To find:

The principal value.

Solution:

The formula for simple interest is:

$I=\dfrac{P\times r\times t}{100}$

Where, P is principal, r is the simple rate of interest, and t is the number of years.

Putting $r=9,t=3$ in the above formula, we get

$I=\dfrac{P\times 9\times 3}{100}$

$I=\dfrac{27P}{100}$

$I=0.27P$

We know that,

$\text{Amount}=\text{Principal + Interest}$

$9144=P+0.27P$

$9144=1.27P$

Divide both sides by 1.27, we get

$\dfrac{9144}{1.27}=P$

$7200=P$

Therefore, the principal value is Rs. 7200.

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Mumz [18]

The answer is D.

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2 years ago

The area of a rectangular wall of a barn is 33 square feet. Its length is 8 feet longer than the width. Find the length and widt

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Answer:

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In simplified form it is 5x+5

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Hopes this helps:

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