Answer:
(s*t)(-7) = 987
Step-by-step explanation:
s(x) = 2 - x²
t(x) = 3x
To find (s*t)(x), multiply s(x) and t(x).
(s*t)(x) = (2 - x²)(3x)
(s*t)(x) = 6x - 3x³
Now that you have (s*t)(x), plug -7 in.
(s*t)(-7) = 6(-7) - 3(-7)³
(s*t)(-7) = 6(-7) - 3(-343)
(s*t)(-7) = -42 + 1029
(s*t)(-7) = 987
Answer: n=4 y=3
Step-by-step explanation:
3n - y = 9
2n + y = 11
n=4
3(4) - y = 9
12 - y = 9
y=3
The word “<em>more than”</em> goes with addition.
Happy studying,
-:)
