Calculate.-3.15 ? (-8.3)
A. 11.45
B. 26.145
C. -11.45
D. -5.15
Answer: B
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Calculate the flux of F across G.F(x, y, z) = 3xi + 3yj + 3zk; G is the surface of the sphere x2 + y2 + z2 = 4 in the first octant
A. 8? B. 12? C. 0 D. 24?
Find the product.(4y2)(11y7 - 9y3)
A. 8y9 + 8y5 B. 8y2 C. 44y9 - 36y5 D. 44y9 - 9y3
Use the graph to answer the question. 
What was the increase in sales between month 5 and month 6 of 2007?
A. $800 B. $8000 C. $4 D. $4000
Provide an appropriate response.Find all of the higher-order derivatives of x(t) = 
x3 - 
x2 - 4x. Use your graphing calculator to graph x(t) and x'(t) on the same axes. Verify that when x(t) is increasing (sloping upward), the value of x'(t) is positive. Repeat this for x'(t) and x''(t) and for x''(t) and x'''(t).
What will be an ideal response?