Answer:
C. f(-1) =12
Step-by-step explanation:
f(x)= 3x^2+9
Let x=-1
f(-1) = 3(-1)^2 +9
= 3(1)+9
= 3+9
= 12
f(-1) =12
Answer:
16t + 10
Explanation:
Step 1 - Add like terms
-16t + 32t + 10
16t + 10
Move the 1st equation to get y by itself so it’s now y=-4x so you can substitute that in for the second equation 2y+x=-7 becomes 2(-4x)+x=-7
-8x+x=-7
-7x=-7
x=1
then plug that back in to find y
4(1)+y=0
4+y=0
y=-4
now you have x and y so your coordinate (the answer) is (1, -4) hope this helps!
Another expression that is equivalent to 7/2h-3(5h-1/2) is -23/2h+3/2
Answer: 50.24=A
Step-by-step explanation:
I know because i used the equation the radius which is half of the diameter=8 half of 8 is 4 and 4 squared is 16 so 16+3.14 which is pie = 50.24
