Answer:
I think its the third one
Step-by-step explanation:
Answer: option d.
Step-by-step explanation:
We have the function:
y = f(x) = x^2 - 1
The output is 99 when y = 99, and the input is x.
Then we need to solve:
y = 99 = x^2 - 1
for x.
99 = x^2 - 1
99 + 1 =x^2
100 = x^2
√100 = x
10 = x
The correct option is d, input equals 10.
Answer:
w = 15
Step-by-step explanation:
7(w + 3) = 16 + 10(w − 4)
7w + 21 = 16 + 10w - 40
7w + 21 = 10w - 24
-3w = - 45
w = 15
