Use a graphing calculator to solve the equation to the nearest tenth.3x2 - 8x - 9 = 0; x between 3 and 4
A. 3.5
B. 3.4
C. 3.7
D. 3.6
Answer: A
Mathematics
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Solve the problem.When a ball is thrown upward at a speed of 22 m/s, its height h above the ground (in meters) after t seconds is given by the algebraic expression 
Find the height of the ball after 3 seconds.
A. 51.3 m B. 61.1 m C. 21.9 m D. 36.6 m
Mathematics
Find a polynomial with the given zeros.
?
?
A. ?
B. ?
C. ?
D. ?
E. none of these
Mathematics
Solve the equation.
+ 4 = 5
A. {81} B. ? C. {1} D. {-1}
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos(2?) = 
, 0 < ? < 
Find cos ?.
A. 
B. 
C. 
D. 
Mathematics