Fill in each blank with the appropriate response.The graph of y = - 
+ 2 can be obtained from the graph of y = 
by reflecting across the __-axis, vertically shrinking by a factor of 
reflecting across the __-axis, and shifting vertically ___ units in the _______ direction.
A. y; 
; x; 2; upward
B. x; 2; y; 
; upward
C. x; 
; x; 2; upward
D. y; 
; x; 2; downward
Answer: A
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Solve using matrices.A chemist has prepared two acid solutions, one which is 4% acid by volume and the other which is 11% acid. How many cubic centimeters of each should the chemist mix together to obtain 50 cm3 of 
-acid solution?
A. 4%-solution: 3.4 cm3; 11%-solution: 46.6 cm3 B. 4%-solution: 20 cm3; 11%-solution: 20 cm3 C. 4%-solution: 30 cm3; 11%-solution: 20 cm3 D. 4%-solution: 20 cm3; 11%-solution: 30 cm3
Multiply.(7x - 8)2
A. 7x2 + 64 B. 7x2 - 112x + 64 C. 49x2 + 64 D. 49x2 - 112x + 64
Find the value of the expression.Let logb A = 5 and logb B = -4. Find logb B2.
A. 16 B. -16 C. 10 D. -8
Solve the problem.The life (in years) of a certain species of whale is a random variable with probability density function defined by 
for x in [4, 9]. Find the mean life of this species of whale.
A. 6.4 years B. 7.8 years C. 8.1 years D. 9.6 years