Find the value of a so that vectors 
and 
are perpendicular.
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: A
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Use a graphing utility to graph the equation: y = x 4 – 5x 2 + 4.
a. 
b. 
c. 
d. 
Multiply.(5x - 7)2
A. 5x2 - 70x + 49 B. 25x2 - 70x + 49 C. 5x2 + 49 D. 25x2 + 49
A hole in the side of a large metal tank needs to be repaired. A piece of rectangular sheet metal of area 
will patch the hole. If the length of the sheet metal must be 
ft longer than its width what will the dimensions of the
sheet metal be? A. The width is 44 ft, The length is 3.25 ft. B. The width is 11 ft, The length is 13 ft. C. The width is 13 ft, The length is 11 ft. D. The width is 11 ft, The length is 11 ft. E. The width is 13 ft, The length is 13 ft.
Solve the problem.A picture costs $340. The sales tax is $17.00. What is the sales tax rate and what is the total price paid?
A. 5%, $357.00 B. 0.5%, $357.00 C. 7%, $357.00 D. 6%, $357.00