Use sum-to-product identities to rewrite the expression as a product.cos 6x + cos 4x
A. 2 sin 5x sin x
B. 2 cos 5x sin x
C. 2 cos 5x cos x
D. 2 cos 5x
Answer: C
Mathematics
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Express the given expression in simplest form with only positive exponents.
A. x12
B. 
C. x25
D. x100
Mathematics
In a parallel circuit, GT = 5 mS and V = 20 V. Find IT.
a. 100 mA b. 4 mA c. 100 mA d. 25 mA
Mathematics
Use the Pythagorean theorem to find the unknown side of the right triangle.
A. 10
B. 5
C. 25
D. 35
Mathematics
Provide an appropriate response.Solve the equation 
for x. If y is positive and b is positive, what, if anything, can you determine about the signs of the solutions? Explain your reasoning.
What will be an ideal response?
Mathematics