Graph the function.y =  cos x

A.

B.

C.

D.


Answer: B

Mathematics

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Compute the average rate of change of f from x1 to x2. Round your answer to two decimal places whenappropriate. Interpret your result graphically.f(x) = 5x + 2, x1= -4 and x2= -1

A. 7; the slope of the line passing through (-4, f(-4)) and (-1, f(-1)) is 7. B. 4; the slope of the line passing through (-4, f(-4)) and (-1, f(-1)) is 4. C. 5; the slope of the line passing through (-4, f(-4)) and (-1, f(-1)) is 5. D. 6; the slope of the line passing through (-4, f(-4)) and (-1, f(-1)) is 6.

Mathematics

Solve the problem.The number (in thousands) of male employees working for a certain company can be approximated by  where x represents the number of years since the company first opened. The corresponding polynomial for female employees is  Find the polynomial that represents, for a given year, how many more male employees than female employees there were. 

A. (-0.1x2 + 11.1x + 7.2) thousand B. (-0.1x2 + 11.1x + 5.2) thousand C. (-0.1x2 + 3.3x + 7.2) thousand D. (-0.1x2 + 3.3x + 5.2) thousand

Mathematics

Find the sum.4 + (-3)

A. 1 B. -1 C. -7 D. 7

Mathematics

Find the quotient.104 ÷ (-52)

A. 2
B. -12
C. -2
D. - 

Mathematics