Use the absolute value to express the distance between the points with coordinates a and b on the number line. Then determine this distance by evaluating the absolute value expression.a = 
and b = - 
A. 
= 
B. 
= 1
C. 
= 11
D. 
= -1
Answer: B
Mathematics
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Solve the problem.A generator produces an alternating current according to the equation 
, where t is time in seconds and I is the current in amperes. What is the smallest time t such that I = 12?
A. 
sec
B. 
sec
C. 
sec
D. 
sec
Mathematics
Identify the equation without completing the square.4x2 - 2x + y + 4 = 0
A. ellipse B. hyperbola C. parabola D. not a conic
Mathematics
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.
2
A. -9
B. 
C. 9
D. 
Mathematics
Find the future value.$3742 invested for 12 years at 5% compounded quarterly
A. $6720.09 B. $6809.87 C. $6768.25 D. $6793.06
Mathematics