Write the fraction in decimal notation.

A. 0.238
B. 0.288
C. 0.388
D. 0.308


Answer: B

Mathematics

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Find the magnitude  and direction angle ?, to the nearest tenth of a degree, for the given vector v. v = -3i - 4j

A. 5; 53.1° B. 5; 216.9° C. 7; 233.1° D. 5; 233.1°

Mathematics

Write an equation to describe the variation. Use k for the constant of proportionality.x varies directly as the square of y and inversely as z.

A. x = ky2z
B. x = 
C. x = 
D. x = k + y2 - z2

Mathematics

Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. Determine where the function is increasing and where it is decreasing. If necessary, round answers to two decimal places.f(x) = -0.3x3 + 0.2x2 + 4x - 5; (-4, 5)

What will be an ideal response?

Mathematics

?After t years, the value of a car that originally cost $18,000 depreciates so that each year it is worth  of its value for the previous year. Find a model for V(t), the value of the car after t years.  

A. ?
B. ?
C. ?
D. ?
E. ?

Mathematics