Find the exact value of the expression if ? = 45°. Do not use a calculator.f(?) = cos ?Find 11 f(?).
A. 
B. - 
C. - 
D. 
Answer: D
Mathematics
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List the elements in the set .Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. C' ? A'
A. {r, t} B. {q, r, s, t, u, v, x, z} C. {q, s, u, v, w, x, y, z} D. {w, y}
Mathematics
Shade the region that represents the set described.A' ? B
A. 
B. 
C. 
D. 
Mathematics
Round the number as indicated.538 to the nearest hundred
A. 510 B. 500 C. 400 D. 600
Mathematics
Perform the indicated operations. Write the result using only positive exponents. Assume all variables represent nonzero real numbers.
A. - 
B. 
C. -3ab2
D. 
Mathematics