Provide an appropriate response.Estimate the sum by rounding to the nearest whole number: 2.78 + 8.48
A. 9
B. 12
C. 10
D. 11
Answer: D
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Evaluate the integral by using multiple substitutions.
dx
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Solve.A weight on a vertical spring is given an initial downward velocity of 3 cm/sec from a point 6 cm above equilibrium. Assuming that the constant ? has a value of 2, find the location of the weight 2 sec after it is set in motion.
A. 1.7 cm below the equilibrium position B. 3.6 cm below the equilibrium position C. 2.8 cm below the equilibrium position D. 2.8 cm above the equilibrium position
Determine whether the statement is true or false.If a function f has an inverse function and the domain of f is all real numbers, then the domain of f-1 must also be all real numbers.
A. True B. False
Determine whether the two matrices are inverses of each other by computing their product.
and 
A. No B. Yes