Solve the exponential equation and approximate the result, correct to three decimal places.ex + e-x = 3
A. 0.557, -1.3679
B. 0.9163, -0.6931
C. 1.1948, -1.1948
D. 0.9624, -0.9624
Answer: D
Mathematics
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Perform the matrix operation.Given A = 
and B = 
, find 2A + 3B.
A. 
B. 
C. 
D. 
Mathematics
Find the total area of the region between the curve and the x-axis.y = -x2 + 9; 0 ? x ? 5
A. 
B. 
C. 
D. 
Mathematics
Graph the function on a grapher. Then use the grapher to find the x- and y-intercepts. Round to the nearest hundredth if necessary.f(x) = -10.3x2 + 8.45x + 6.34
A. (-0.48, 0), (0, 6.34) B. (-0.48, 0), (1.30, 0), (0, 6.34) C. (-1.30, 0), (0.48, 0), (0, -6.34) D. No x-intercepts, (0, 6.34)
Mathematics
Simplify the radical expression. Assume all variables represent positive real numbers.
A. -3 B. 81 C. 3 D. not a real number
Mathematics