Graph the inequality on a number line. Then write the solution in interval notation.x > 4
A. (4, ?)
B. [4, ?)
C. (-?, 4]
D. (-?, 4)
Answer: A
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Find T, N, and B for the given space curve.r(t) = (2t sin t + 2cos t)i + (2t cos t - 2 sin t)j - 10k
A. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j; B = -k B. T = (cos t)i + (sin t)j; N = (-sin t)i + (cos t)j; B = k C. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j; B = -10k D. T = (cos t)i - (sin t)j; N = (-sin t)i - (cos t)j; B = -k
Solve the system by substitution. -4x + 8y = 56 x + 7y = 49
A. No solution B. (0, 7) C. (1, 6) D. (-7, 0)
Solve the problem.A paint mixture contains 15 gallons of base for every gallon of color. In 640 gallons of paint, how many gallons of color are there?
A. 600 gallons B. 213 gallons C. 40 gallons D. 320 gallons
Find the probability.A bag contains 3 blue marbles, 8 green marbles, and 5 red marbles. One marble is drawn from the bag. What is the probability that the marble drawn is not blue?
A. 
B. 
C. 
D. 