Complete the identity.cos  = ?

A. -  (cos x - sin x)
B.  (cos x - sin x)
C. ( cos x - sin x)
D. -  (cos x + sin x)


Answer: C

Mathematics

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Add the polynomials. Assume all variable exponents represent whole numbers. + 

A. x8 + x6 - x2 + 7
B. x8 + x6 + x2 + 16
C. - x4 + x3 + x - 2
D. x4 + x3 + x + 16

Mathematics

Solve the problem. Use the fire insurance rate table if needed. Rates are for each $100 of insurance. Round to the nearest dollar.SLM Instruments owns a class B building with a replacement cost of  Contents are valued at  The area is rated 3. Find the fire insurance annual premium.

A. $4,370 B. $506 C. $5,243 D. $5,063

Mathematics

Solve the problem.Given A =   and B = , find AB and BA.

A.
AB = ; BA = 
B.
AB =  ; BA = 
C.
AB = ; BA = 
D.
AB = ; BA = 

Mathematics

Write the first six terms of the arithmetic sequence with the given properties. ?  a = -7, d = -1 ?  Please enter your answer as six numbers in order, separated by commas.

What will be an ideal response?

Mathematics