Answer:
A. 1922
Step-by-step explanation:
f(x) = 4x + 1 and g(x) = 2x^2
First find f (-8)
f(-8) = 4(-8) + 1 = -32+1 = -31
Then find g(-31)
g(-31) = 2 (-31)^2 =1922
Answer:
x=9
Step-by-step explanation:
2x+10=28
Subtract 10 from both sides
2x=18
Divide by 2 on both sides
x=9
The answer you seek is 15 and -4. 15*-4=-60 and 15-4=11.
Answer:
x = 3.5
y = - 4
Step-by-step explanation:
2(4x + 7y = -14)
8x + 14y = -28
8x + 5y = 8
- (8x + 14y = -28)
--------------------------
- 9y = 36
y = 36/-9
y = - 4
4x + 7y = - 14
4x + 7(- 4) = - 14
4x -28 = - 14
4x = 14
x = 14/4
x = 3.5
Answer:
15
Step-by-step explanation:
Using the formular, Sn = n/2(2a + (n - 1)d)
where, n = 6: Sn = 6/2( -20 + 5(3)) = 3(15 - 20)
∴ Sn = 15
