Solve.A projectile is thrown upward so that its distance, in feet, above the ground after t seconds is 
What is its maximum height?
A. 16,800 ft
B. 4400 ft
C. 189,640 ft
D. 4719 ft
Answer: B
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Solve the problem.If v = i + 4j - 2k and w = -5i + 4j - k, then evaluate v × w.
A. -12i - 9j - 16k B. -4i + 7j + 24k C. 4i + 11j + 24k D. 24i - 4j - 11k
Write the decimal number in standard form.Fifty-six hundredths
A. 56 B. 50.6 C. 0.056 D. 0.56
Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.18y2 + 81y - 45
A. (18y - 9)(y + 5) B. 9(2y - 1)(y + 5) C. 9(2y + 1)(y - 5) D. prime
Solve the problem.A comet follows the hyperbolic path described by 
- 
= 1, where x and y are in millions. If the sun is the focus of the path, how close to the sun is the vertex of the path? 
A. 1.2 million B. 19 million C. 4.4 million D. 3.2 million