They both use the intercections of arcs to find the line. I think.
Answer:
65
Step-by-step explanation:
Answer:140
Step-by-step explanation:
Answer:
a=31
Step-by-step explanation:
1/2(a-9)=11
a-9=22
a=22+9
a=31
Answer:
D
Step-by-step explanation:
f(x) = 3x^2 - 2x + 5
f(-2) means that wherever you see an x on the right, you put in the value of -2 for the x.
f(-2) = 3(-2)^2 - 2(-2) + 5
f(-2) = 3(4) + 4 + 5
f(-2) = 12 + 9
f(-2) = 21
The answer is D