Injective- (one-to-One)
so
Replace the f(x) with y
10-4x
Interchange the variables
x=10-4y
Solv for y.
y= 5/2 - x/4
So solve for y and replace with f-1 (x).
and it equals
f-1 (x)=5/2- x/4
Answer:x = 4 1/2
19-2 1/2 x2 = 14-2 1/2 x2 = 9/2 = 4 1/2
Answer:
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Step-by-step explanation:
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190 min.................................
28 x 75% = 21
Jenna ordered 21 large shirts.