Use a graphing calculator to make a conjecture as to whether each equation is an identity.sin 2x = 2sin x cos x
A. Not an Identity
B. Identity
Answer: B
Mathematics
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Find the absolute value.
A. -7.4 B. 7.4 C. ± 7.4 D. 0
Mathematics
Solve the problem. Round to the nearest tenth if necessary.A certain drug comes in 2000-mg pills. How many of these pills do you have to take to get a dosage of half a gram?
A. 
B. 4
C. 
D. 5
Mathematics
Add or subtract by first simplifying each radical and then combining any like radical terms. Assume that all variables represent positive real numbers.3
- 4
A. 12 
- 4 
B. 36 
C. 3
- 4
D. 0
Mathematics
Find all values of x satisfying the given conditions.y = x2 + 12x and y = -16
A. 2
± 6
B. -6 ± 2
C. ± 2
D. -6 ± 2
Mathematics