Multiply. Assume that no radicands were formed by raising negative numbers to even powers.(7 + 
)(7 - 
)
A. 24
B. 44
C. 49 - 
D. 49 - 
Answer: C
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What value of x gives the minimum value of 
? Restrict your attention to the horizontal span of 0 to 10. Round your answer to two decimal places.
?
A. 29.38 B. 5.39 C. 4.05 D. 33.06
Solve the initial value problem.Differential Equation: 
= (-cos t)i + (4t3- 2)jInitial Condition: r(0) = 9j
A. r(t) = (sin t)i + (12t2 + 9)j B. r(t) = (-sin t)i + (t4)j C. r(t) = (-sin t)i + (t4 + 9)j D. r(t) = (-sin t)i + (t4- 2t + 9)j
Find the indicated derivative.Find fy f(x,y,z) = 4x7e(2y6 + 10z7)
A. 48x7y5e12y5 B. 12y5e(2y6 + 10z7) C. 12y5e2y6 D. 48x7y5e(2y6 + 10z7)
Determine the position of the hand relative to the shoulder by considering the robotic arm illustrated in the figure. Round the answer to the nearest tenth.? = 62°, ? = 10° 
A. (13.8, 41.2°) B. (13.8, -41.2°) C. (13.8, -48.8°) D. (13.8, 48.8°)