Use a sum-to-product identity to rewrite the expression.sin 
+ sin 
A. 2 cos 
cos 
B. 2 sin 
sin 
C. cos 
cos 
D. 2 sin 
cos 
Answer: D
Mathematics
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Complete the magic (addition) square. A magic square has the property that the sum of the numbers in any row, column, or diagonal is the same.Use each number 25, 26, 27, 28, 29, 30, 31, 32, and 33 once.
A. 
B. 
C. 
D. 
Mathematics
Use a graphical method to solve the system. Give x- and y-coordinates correct to the nearest hundredth.y = e2x+32x + y = 3
A. x = -0.75, y = 4.50 B. x = -0.75, y = -4.50 C. x = 0.75, y = 4.50 D. x = 0.75, y = -4.50
Mathematics
Decide whether the relation defines a function.y = 7x - 3
A. Not a function B. Function
Mathematics
Write the ratio as a fraction in simplest form.24 to 27
A. 
B. 
C. 
D. 3
Mathematics