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3 years ago

It was reported that Ross Perot spent approximately $40 million of his own money in the 1992 presidential campaign. His total wo

rth was reported to be approximately $4 billion. If your total worth were $50,000 and you spent the same fraction of your worth on an election as Perot did, how much money would you have spent?

Mathematics

1 answer:

never [62]3 years ago

4 0

$\bf \textit{Ross Perot spent }\cfrac{40000000}{4000000000}
\\\\\\
\textit{how much is that of 50,000?}\qquad well
\\\\\\
\cfrac{40000000}{4000000000}\times 50000\impliedby \textit{that much}$

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indicate whether the measures 8, 14, and 16 can be the side lengths of a triangle. if they can, classify the triangle.

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A triangle is possible.

The triangle is acute and scalene

=============================================================

Explanation:

We use the triangle inequality theorem to see if a triangle is possible with these side lengths.

Consider the side lengths a, b, and c. A triangle is possible if and only if the following 3 conditions hold true

a+b > c
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Basically pick any two sides. If the sum is larger than the third side, then a triangle is possible.

-----------------

In this case we have: a = 8, b = 14, c = 16. The order of the a,b,c values doesn't really matter.

Then:

a+b = 8+14 = 22 which is larger than c = 16. So a+b > c is true.
a+c = 8+16 = 24 is larger than b = 14. So a+c > b is true.
b+c = 14+16 = 30 is larger than a = 8. So b+c > a is true.

All three inequalities mentioned are true; therefore, a triangle is possible with these side lengths.

-----------------

We'll use those a,b,c values in the converse of the pythagorean theorem to determine what kind of triangle this is. So far we know it's scalene because all three side lengths are different. It would be isosceles if it had exactly two equal sides, and equilateral if all 3 sides were the same length.

$a^2+b^2 = c^2\\\\8^2+14^2 = 16^2\\\\260 = 256\\\\$

The last equation is false, which tells us this triangle is not a right triangle. It's either acute or obtuse.

Since $a^2+b^2 > c^2$ is the case here, we can conclude the triangle is acute

If $a^2+b^2 < c^2$ was the case, then the triangle would be obtuse.

-----------------

Summary:

A triangle is possible with side lengths a = 8, b = 14, c = 16.
This triangle is scalene and acute

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