Combine like terms.20
x + 5
x
A. 24
x
B. 26
x
C. 20
x
D. 25
x
Answer: D
Mathematics
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Solve the problem.The formula a = 
gives an object's average acceleration a when its velocity changes from v1 at time t1 to v2 at time t2. Solve for t2.
A. t2 = 
B. t2 = 
C. t2 = 
D. t2 = 
Mathematics
Find the amplitude, period, or phase shift as specified.Find the amplitude of y = -5 cos 
.
A. 3?
B. 5
C. -15
D. 
Mathematics
Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution. x + y + z + w = 7 3x - 2z + 5w = 11-4x + 3y + w = 4 -x - y - z - w = 6
A. ?
B. 
C. 
D. 
Mathematics
Find two square roots for the complex number. Write your answer in standard form.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics