The question is simple and the explanation but I will give you
Answer:
- f⁻¹(x) = 2x - 8
- f⁻¹(4) = 0
Step-by-step explanation:
You can find an inverse function by interchanging x and y, then solving for y.
Original function:
y = (1/2)x +4
With x and y interchanged:
x = (1/2)y +4
Subtracting 4 gives ...
x -4 = 1/2y
Multiplying by 2 gives ...
2x -8 = y
Then the inverse function is written ...
f⁻¹(x) = 2x - 8
Evaluating this for x=4, we get ...
f⁻¹(4) = 2·4 -8 = 0
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It looks like your answer boxes are filled with ...
Answer:
19 - 13 = 6
(6/13)* 100 = 46.15%
46%
Step-by-step explanation:
Answer:
24 gallons per hour
Step-by-step explanation:
Connor filled his 150-gallon pool with water in 6.25, to find out how many gallons per hour he used, we have to divide the amount of gallons into every hour. Therefore:
150/6.25
24 gallons per hour.
Answer:
26x - 21
Step-by-step explanation:
Remember to follow PEMDAS. First, distribute 3 to all terms within the parenthesis.
3(8x - 7) = 3(8x) + 3(-7) = 24x - 21
Simplify. Combine like terms:
24x - 21 + 2x = (24x + 2x) - 21 = 26x - 21
26x - 21 is your answer.
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