Solve the problem.The function h described by  gives the height of a ball thrown upward with a speed of 33.1 feet per second from a 124.26 ft high window t seconds after it is thrown until it hits the ground. Find the height of the ball 1.5 seconds after it is thrown.

A. 38.61 ft
B. 137.91 ft
C. 209.91 ft
D. 110.61 ft


Answer: B

Mathematics

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Which of the following is the reflection, on a coordinate system, across the y-axis, for the point:  (-2, 9)? ?

A. ?(2, -9) B. ?(-2, -9) C. ?(2, 9) D. ?(-2, 9) E. ?None of the above.

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Provide an appropriate response.Use a graphing calculator to find all real roots of the equation. Round answers to two decimal places, if necessary: 

Fill in the blank(s) with the appropriate word(s).

Mathematics

Solve using matrices. 5x + y = 23 3x + 3y = 9

A. (-2, -5) B. (5, -2) C. (5, -5) D. (-2, 5)

Mathematics

Decide whether the equation is an identity, a conditional equation, or a contradiction. Give the solution set.20x + 15 = 5(2x + 11)

A. Conditional; {-7} B. Conditional; {4} C. Identity; {all real numbers} D. Contradiction; ?

Mathematics