Write the equation in standard form.y = (x + 8)2
A. y = x2 + 16x + 64
B. y = x + 64
C. y = x2 + 8x + 64
D. y = x2 + 64
Answer: A
Mathematics
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Factor.20z4 + 3z2 - 9
A. (5z2 + 3)(4z2 - 3) B. (5z4 + 3)(4z - 3) C. (4z2 + 3)(5z2 - 3) D. (4z4 + 3)(5z - 3)
Mathematics
Solve the problem. When needed, use 365 days per year and 30 days per month.An initial investment of $1000 is appreciated for 6 years in an account that earns 9% interest, compounded semiannually. Find the amount of money in the account at the end of the period.
A. $695.88 B. $1695.88 C. $1677.10 D. $1622.85
Mathematics
Find the exact function value if it exists.sin (-630°)
A. 
B. 1
C. 0
D. Undefined
Mathematics
Find the period of the function y = 3 sec x and sketch its graph.
What will be an ideal response?
Mathematics