Graph the quadratic equation on [-10, 10] by [-10, 10]. Does this window give a complete graph?f(x) = -4x2 + 2x - 1
A. 
No
B. 
Yes
C. 
Yes
D. 
No
Answer: C
Mathematics
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Solve the problem.In the study of alternating electric current, capacitive voltage is given byVc = - 
cos 2?ft,where f is the number of cycles per second, i is the maximum current, and t is the time in seconds. Solve the equation for t.
A. t = 2?f cos 
B. t = 
arccos 
C. t = 
arccos 
D. t = 2?f arccos 
Mathematics
Use the product and quotient rules, as necessary, to simplify the radical expression.
A. 35
B. 5
C. 5
D. 2
Mathematics
Write the number in scientific notation.0.000048919
A. 4.8919 × 10-4 B. 4.8919 × 104 C. 4.8919 × 105 D. 4.8919 × 10-5
Mathematics
Compute the product.
A. 
B. 
C. 
D. not defined
Mathematics