3 years ago

Help me please need help

1 answer:

5 0

Let a,b,c be the sides of the triangle. Make c the longest side. The value of a and b doesn't matter.
a = 9
b = 40
c = 41

The value of a^2+b^2 is
a^2+b^2 = 9^2+40^2 = 1681

The value of c^2 is
c^2 = 41^2 = 1681

Because a^2+b^2 = c^2 for these values, this means that we have a right triangle.

Answer is choice D

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A sampling of hemlock trees revealed that 7 out of 190 trees are infected with insects. About how many of the 950 hemlock trees

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Answer:

About 35 trees in a state park are infected with insects

Step-by-step explanation:

we know that

7 out of 190 trees are infected with insects

using proportion

Find out about how many of the 950 hemlock trees in a state park are infected with insects

$\frac{190}{7}=\frac{950}{x} \\\\x=7(950)/190\\\\x= 35$