The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = (x + 1)2
B. f-1(x) = 
C. f-1(x) = x2 - 1, x ? 0
D. f-1(x) = x2 + 1, x ? 0
Answer: C
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Solve the system using matrices. x - y + 5z = 63x+ z = 2 x + 4y + z = 18
A. No solution B. (2, 4, 0) C. (2, 0, 4) D. (0, 4, 2)
Solve.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total profit function is given by 
where x represents the number of boxes of computer chips produced. The total cost function, C(x), is such that 
Find C(x).
A. C(x) = 5x + 11 B. C(x) = -0.3x2 + 6x + 15 C. C(x) = 3x + 15 D. C(x) = 4x + 20
Perform the operation and write the result in the standard form.7i(5 - 5i)
A. 35i + 35i2 B. 35i - 35 C. 35 + 35i D. - 35i - 35i2
Add or subtract as indicated.|14 + 15|
A. -1 B. -29 C. 1 D. 29