Decide whether the expression is or is not an identity.csc2 
tan 
= csc x
A. Not an identity
B. Identity
Answer: A
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Use the factor theorem to decide whether or not the second polynomial is a factor of the first.-8x3 + 30x2 - 7x + 4; x + 4
A. Yes B. No
Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.
+ 
A. 
B. 
C. 
D. 
Provide an appropriate response.Is it true that in order to multiply a number by a negative power of ten, you must move the decimal point to the left as many places as indicated by the absolute value of the exponent on the ten?
A. Yes B. No
Solve the problem.The cost to make a product is M(x,y) = 6x2 + 2y2 - 4xy + 50, where x is material cost, y is labor cost. The company spends $8 on materials and $9 on labor. Use the differential to estimate the change in cost if the company spends $13 on materials and $8 on labor.
A. $296 B. -$8 C. -$600 D. $600