Use a sum-to-product identity to rewrite the expression.sin 50° - sin 44°
A. 2 cos 47° cos 3°
B. 2 cos 47° sin 3°
C. -2 sin 47° sin 3°
D. 2 sin 47° cos 3°
Answer: B
Mathematics
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Use the vertical line test to determine if the graph is a function.
A. Yes B. No
Mathematics
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.3ex = 29
A. 2.27 B. -2.27 C. -0.99 D. 0.99
Mathematics
Divide.
A. -45x13 + 27x12 + 45x8 B. -5x13 + 3x12 + 5x8 C. -5x7 + 3x6 + 5x2 D. -45x7 + 27x6 + 45x2
Mathematics
Assume that x is a positive number. Use the properties of logarithms to write the expression 
as the logarithm of one quantity.
a. 
b. 
c. 
d. 
e. 
Mathematics