Use Cramer's rule to solve the linear system.2x + 2y = 182x - 2y = 14
A. (-8, -1)
B. (-1, 8)
C. (1, 8)
D. (8, 1)
Answer: D
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Show that the function f has an inverse by showing that it is strictly monotonic.f(?) = sin ?, 0 < ? < 
What will be an ideal response?
Find the derivative of the function.s = 
A. 
= 8t8 + 7t2 + 8t
B. 
= t3 - 
- 
C. 
= 4t3 - 
- 
D. 
= 4t3 + 
+ 
Provide an appropriate response.The position of an object in free fall near the surface of the plane where the acceleration due to gravity has a constant magnitude of g (length-units)/sec2 is given by the equation: s = -
gt2 + v0t + s0, where s is the height above the earth, v0 is the initial velocity, and s0 is the initial height. Give the initial value problem for this situation. Solve it to check its validity. Remember the positive direction is the upward direction.
A. 
= g , s '(0) = v0, s(0) = s0
B. 
= -g
C. 
= -gt , s(0) = s0
D. 
= -g , s '(0) = v0, s(0) = s0
Perform the indicated row operations on the following matrix. 
(-2)R1 + R2 ? R2
A. 
B. 
C. 
D. 