Write the sum as a product. cos 4x + cos 5x
What will be an ideal response?
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Mathematics
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Factor the difference of cubes.
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?
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A. 
B. 
C. 
D. 
E. 
Mathematics
Find an equation of variation in which the following are true.y varies jointly as x and z and inversely as the product of w and p, and 
when x = 5, z = 10, 
and 
A. y = 
B. y = 
C. y = 
D. y = 
Mathematics
Solve the problem.Find the supplement of an angle that measures 18°.
A. 72° B. 342° C. 162° D. 252°
Mathematics
Determine algebraically whether the function is even, odd, or neither.f(x) = 
A. even B. odd C. neither
Mathematics