Evaluate the expression for other given values of the variables.3x for x = 7
A. 7
B. 3
C. 10
D. 21
Answer: D
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Provide an appropriate response.If cos x is replaced by 
and |x| < 0.8, what estimate can be made of the error?
A. |E| < 0.00045511 B. |E| < 0.0027307 C. |E| < 0.0021845 D. |E| < 0.00036409
Provide an appropriate response.Evaluate the following: -2(15) - [2(-7) - 43]
Fill in the blank(s) with the appropriate word(s).
Solve the problem.The volume of wood in a tree varies jointly as the height of the tree and the square of the distance around the tree trunk. If the volume of wood is src="https://sciemce.com/media/4/ppg__tttt0515190922__f1q27g5.jpg" alt="" style="vertical-align: -4.0px;" /> around the trunk?
A. 78 ft3
B. 66 ft3
C. 74 ft3
D. 83 ft3
when the height is 
and the distance around the trunk is 
what is the volume of wood obtained from a tree that is 
tall having a measurement of
Factor completely, or state that the polynomial is prime. Assume any variable exponents represent whole numbers.7x - 7x11y2
A. 7x(1 + x5y)(1 - x5y) B. 7xy(1 + x6)(1 - x6) C. prime D. (7x + x5y)(7x - x5y)