Find the exact value of y, or state that y is undefined.y = cos-1 
A.
B. -
C.
D.
Answer: C
Mathematics
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Choose the appropriate response. Perpendicular lines .
A. always intersect at a 45° angle B. have slopes that are negative reciprocals of each other C. have opposite slopes D. have the same slope
Mathematics
Divide.(p2 + 5p - 20) ÷ (p + 8)
A. p - 3 +
B. p - 3
C. p - 4 +
D. p + 3 +
Mathematics
Write the expression in standard form.4.47 × 104
A. 178.8 B. 447,000 C. 4470 D. 44,700
Mathematics
For the function f, use composition of functions to show that f-1 is as given.,
What will be an ideal response?
Mathematics