3 years ago

The ratio of boys to girls is 2 to 5 if they're 80 girls how many boys are there

1 answer:

4 0

There are 32 boys; if you set up a proportion of boys over girls like 2/5=x/80 and cross multiply you should get that x = 32 boys

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What is the length of side TS?

-Dominant- [34]

We know that

in the triangle TQS
applying the Pythagorean theorem
QS²=TS²+TQ²---------> TQ²=QS²-TS²--------> TQ²=18²-9x²-----> equation 1

in the triangle TRS
TS²=TR²+RS²--------------> TR²=TS²-RS²-------> TR²=9x²-144----> equation 2

in the triangle QTR
TQ²=TR²+36-----------> equation 3

I substitute 1 and 2 in 3
18²-9x²=9x²-144+36--------> 18x²-432=0------> x²=24-------> x=√24
x=2√6
TS=3*x------> 3*2√6-----> 6√6
TS=6√6 units

the answer is
TS=6√6 units
6 is the square root of 6 units

6 0

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Nadya [2.5K]

Answer:

Isosceles

Step-by-step explanation:

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