Answer the question.Force transfer due to tightening a bolt in a sleeve produces stresses B psi in the bolt and S psi in the sleeve related by:
Are the stresses B = 1600 psi and S = -400?
A. Yes
B. No
C. Cannot be determined
Answer: A
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Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 1; local maximum at x =-1; concave down on (0, ?); concave up on (-?, 0) B. Local maximum at x = 1; local minimum at x =-1; concave up on (0, ?); concave down on (-?, 0) C. Local minimum at x = 1; local maximum at x =-1; concave up on (0, ?); concave down on (-?, 0) D. Local maximum at x = 1; local minimum at x =-1; concave up on (-?, ?)
Find the indicated matrix.Let A = 
and B = 
. Find 2A - 3B.
A. 
B. 
C. 
D. 
Divide. Leave your answer in exponent form. Assume that all variables in any denominator are nonzero.
A. x16 - x15
B. 
C. x
D. x31
Solve the system graphically. Give x- and y-coordinates correct to the nearest hundredth.y = ex + 3x2 - 4y2 = 11
A. {(1.04, -0.14), (3.52, -1.69)} B. {(2.75, 1.28)} C. {(-3.52, 0.59)} D. {(2.75, -1.28)}