Solve the equation. Express radicals in simplest form.(r + 6)2 = 17

A. {6 + , 6 - }
B. {-6 + , -6 - }
C. {}
D. {11}


Answer: B

Mathematics

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Solve the problem. Assume the x-axis is horizontal, the positive y-axis is vertical (opposite g), the ground is horizontal, and only the gravitational force acts on the objects. A projectile is launched from the origin at an angle of ? radians to the horizontal and an initial speed of  Find the position function r(t) for this projectile.

A. r(t) = (175t cos ?)i + (175t sin ? - 16t2)j B. r(t) = (175t sin ? - 16t2)i + (175t cos ?)j C. r(t) = (175t sin ?)i + (175t cos ? - 16t2)j D. r(t) = (175t cos ? - 32t2)i + (175t sin ?)j

Mathematics

Use the given graph to find the x-intercepts and zeros of the function.

A. (4, 0), (1, 0); 4, 1 B. (-4, 0), (-1, 0); -4, -1 C. (-4, 0), (1, 0); -4, 1 D. (-1, 0), (4, 0); -1, 4

Mathematics

Find the probability.If 80% of scheduled flights actually take place and cancellations are independent events, what is the probability that 3 separate flights will all take place?

A. .01 B. .64 C. .51 D. .80

Mathematics

Find the nth term an of the geometric sequence.1.4, -1.12, 0.896, -0.7168, . . .

A. an = -1.4(0.8)n-1 B. an = 1.4(-0.8)n C. an = -1.4(0.08)n D. an = 1.4(-0.8)n-1

Mathematics