Answer:
$7
Step-by-step explanation:
Your two equations are ...
Double the second equation and subtract the first:
2(2s +4t) -(4s +6t) = 2(42) -(70)
2t = 14 . . . . . simplify
t = 7 . . . . . . . divide by 2
The cost of each tie is $7.
Answer:
gf(5) = 289.
fg(x) = 3x^2 + 2.
Step-by-step explanation:
f(5) = 3(5) + 2 = 17
So gf(5) = 17^2 = 289.
fg(x) = 3(x^2) + 2 (we replace the x in f(x) by g(x)).
= 3x^2 + 2.
Answer:
.25
Step-by-step explanation:
3/4 divided by 3
G(x) = x²
a) To find g(1) substitute with x = 1 at the function g(x)
∴ g(1) = 1² = 1
b) substitute with x = -2 at the function g(x)
∴ g(-2) = (-2)² = 4
c) substitute with x = -x at the function g(x)
∴ g(-x) = (-x)² = x²
d) substitute with x = 2y at the function g(x)
∴ g(2y) = (2y)² = 4y²
e) substitute with x = 2+h at the function g(x)
∴ g(2+h) = (2+h)² = h² + 4h + 4
Answer:
50x
Step-by-step explanation:
The 17 is the loop product or 6. Do reverse division and add the 78 on step three. Good Luck!
