4x+30=90
4x = 60
x = 15
answer is B. 15
Answer:
Step-by-step explanation: divide 7 by 3.5 and then the answer that u got u multiply by that number and thats your finale answer
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Answer:
f^-1(x) = 9(x+2)
Step-by-step explanation:
To find the inverse function, exchange x and y and then solve for y
y = 1/9 x -2
Exchange x and y
x = 1/9 y-2
Solve for y
Add 2 to each side
x+2 = 1/9 y-2+2
x+2 = 1/9y
Multiply each side by 9
9(x+2) = 9*1/9y
9(x+2) = y
The inverse function
f^-1(x) = 9(x+2)
Answer: 30
Step-by-step explanation:
Answer:
I can't see the question
its too small can you type it out?
Step-by-step explanation: