A triangle has sides with lengths of 45 feet, 76 feet, and 90 feet. Is it a right triangle?
Yes or No

NO

Step-by-step explanation:

Longest side of the triangle has the length = 90 feet

Other two sides are 45 feet and 76 feet

If the triangle is a right triangle then square of the longest side is equal to the sum of squares of the other two sides.

=>

Left Hand Side = = 8100

Right Hand Side =

= 2025 + 5776

= 7801

So the left hand side is not equal to right hand side. The condition for right triangle is NOT satisfied.

8

step-by-step explanation:

answer: c

substitute in the values.

for a:

f(0) = 0 + 9

f(0) = 9

a is a solution.

for b:

f(7) = 14 + 9

f(7) = 23

b is a solution.

for c:

f (3) = 6 + 9

f(3) = 15

c is not a solution. it's supposed to be 14.

for d:

f(2) = 4 + 9

f(2)= 13

d is a solution.