Find the phase shift of the function.y = 3 cos 
A. 
units to the right
B. ? units to the left
C. 3? units to the right
D. 
units to the left
Answer: B
Mathematics
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Factor.15z2 + 11z - 12
A. (3z + 4)(5z - 3) B. (15z + 1)(z - 12) C. (15z + 4)(z - 3) D. (3z - 4)(5z + 3)
Mathematics
Use mathematical induction to prove the following.6 + 12 + 18 + . . . + 6n = 3n(n + 1)
What will be an ideal response?
Mathematics
Solve.A particular substance decays in such a way that it loses half its weight each day. How much of the substance is left after 9 days if it starts out at 64 grams?
A. 4 grams
B. 
gram
C. 8 grams
D. 
gram
Mathematics
Find the area of the triangle. If necessary, round the answer to two decimal places. 
A. 101.49 B. 9.23 C. 25.37 D. 31.21
Mathematics