I think it might be f^-1 (x) = x/2 - 3/2
I hope this helps!
Esmeralda I think it's wrong cuz it’s like the question but that's added a parentheses so I think that's wrong
Answer: You need a grade of 78 on the final exam to earn a final grade average of at least 87 in each grading system.
Step-by-step explanation:
(85 + 90 + 95 + x)÷ 4 =87
Simplify:
(270 + x) ÷ 4 = 87
Rearrange:
(x + 270) ÷ 4 = 87
Multiply terms to Reduce:
4((x + 270) ÷ 4) = 4 * 87
Cancel Multiplied terms in Denominator:
x + 270 = 4 * 87
Multiply:
x + 270 = 348
Subtract 270 on both sides of the equation:
x + 270 - 270 = 348 - 270
Simplify:
x = 78
Answer:
A
Step-by-step explanation:
Given
5(x - 7) = 55, then using the distributive property, that is
a(b - c) = ab - ac, then
5x - 35 = 55
Answer:
10m - 16
It's basically the same thing but simplified to make it easier to solve.
Step-by-step explanation:
3(4m-2)-2(m+5)
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Distribution
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12m-6-2m-10
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Combining Like Terms
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10m-16
