Multiply.(3.1x - 8y)(2.6x + 5y)
A. 8.06x2 - 5.3xy - 40y2
B. 8.06x - 5.3xy - 40y
C. 8.06x2 - 40y2
D. 8.06x2 - 36.3xy - 40y2
Answer: A
Mathematics
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= -csc u
What will be an ideal response?
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Solve the problem.Suppose that for a particular brand of computer, the average lifespan is 90 months with a standard deviation of 9 months. If a computer lasts for 95 months, what is the z-score for the lifespan of the computer?
A. 0.71 B. 0.56 C. 0.61 D. 0.81
Mathematics
Indicate whether the expression is a polynomial or not a polynomial.7a5
A. Not a polynomial B. Polynomial
Mathematics
Express the function as a sinusoid of the form y = a sin (bx + c).y = 3 sin x + 7 cos x
A. y = 58 sin 
B. y = 
sin 
C. y = 10 sin (3x + 7)
D. y = 
sin 
Mathematics