A triangle has side lengths of (9d+4)(9d+4) centimeters, (9d+2)(9d+2) centimeters, and (3f-2)(3f−2) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?

351.23

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

answer: the answer is 100 x 12,500, which is 1,250,000.

step-by-step explanation: emily solved for a part when she should have solved for the whole.  

875,000 should be the numerator of the equivalent ratio.  

70 x 12,500 is 875,000.