Answer:
D. 4
Step-by-step explanation:
2 + 2 = 4
Answer:
60 square units; 40 units
Step-by-step explanation:
to find the missing side you use the pythagorean theorem
a^2 + b^2 = c^2
8^2 + b^2 = 17^2
64 + b^2 = 289
b^2 = 225
b = 15
area is l*h*1/2
15 * 8 * 1/2 = 60 square units
perimeter is adding them all
15 + 8 + 17 = 40 units
It would be 6/21 but simplified it would be 2/7
4a+6b is the answer you have to look at the variable so for a 4a-2a+2a and b there is just one variable so it’s 6
