A board 26 ft long leans against a vertical wall. If the lower end is being moved away from the wall at a rate of 0.4 ft/sec, how fast is the upper end coming down when the lower end is 10 ft from the wall?
What will be an ideal response?
?0.16 ft sec
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 50 ? 52
A. 25 B. 10 C. 0 D. 7
Mathematics
Solve the given applied problem.A projectile moves vertically upward such that its distance s (in ft) above the ground is given by 
Determine how long it will take to reach a height of 150 ft (to 0.1 s).
A. 0.3 s B. -0.1 s C. 0 s D. 12.2 s
Mathematics
Find the quadratic function whose graph contains the given points.
, 
, 
A. f(x) = -2x2 - 4x + 2 B. f(x) = 2x2 - 4x - 2 C. f(x) = -2x2 + 4x - 2 D. f(x) = -2x2 - 4x - 2
Mathematics
Find all rational zeros.f(x) = 4x3 - 20x2 - x + 5
A. {1, -1, 5}
B. 
C. {2, -2, 5}
D. 
Mathematics