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GenaCL600 [577]
3 years ago
12

Nat222:the obtuse angle of an isosceles triangle is bisected, and each resulting angle is 51 degrees larger than a base angle. h

ow many degrees are in the measure of the obtuse angle?
Mathematics
1 answer:
tresset_1 [31]3 years ago
7 0
Let the measures of the base angles be x, and the measure of the vertex angle be y.

y is bisected, and "each resulting angle is 51 degrees larger than a base angle"

y/2=x+ 51, thus y=2x+102°.


The measures of the interior angles are x-x-(2x+102)

The sum of the measures of the interior angles of any triangle is 180°, thus we have:

x+x+2x+102°=180°

4x=180°-102°

4x=78°

x=78°/4=19.5°


The measure of the obtuse angle is 2x+102°=2*19.5°+102°=141°


Answer: 141°
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Calculate the future value of the annuity assuming that it is (1) an ordinary annuity (2) an annuity due. Comparing the two type
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Answer: Here's the complete question.

calculate the future value of the annuity assuming that it is (1) an ordinary annuity (2) an annuity due. Comparing the two types of annuities, all else equal, which type is more preferable? Why? Amount of annuity Interest rate Deposit period (years) $500 12% 6

Ordinary annuity = 4545, annuity due = 4058 , ordinary annuity is better because it discounts for one less year

Ordinary annuity = 4058, annuity due = 4545, annuity due is better because it discounts for one less year.

Ordinary annuity = 4058, annuity due = 4545, annuity due is better because it compounds for one more year.

Ordinary annuity = 4545, annuity due = 4058 , ordinary annuity is better because it compounds for one more year.

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Future value of ordinary annuity = Amount*[{(1+r)n – 1}/r]

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