Solve the problem.If an object is thrown upward with an initial velocity of 
, its height after t sec is given by 
Find the maximum height attained by the object. (The object will attain maximum height exactly at the halfway point in terms of the time t, where t = 0 is at the beginning of the object's flight, and the final time is when the object hits the ground.)
A. 4 ft
B. 0 ft
C. 16 ft
D. -12 ft
Answer: A
Mathematics
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Find the limit.
A. ? B. 0 C. -? D. -1
Mathematics
Multiply the following:
a. j23 ð j24 b. j2 ð j6 c. j3 ð j26 d. 8 ð j3
Mathematics
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(x + 7)(x - 7)
A. x2 - 14x - 49 B. x2 + 14x - 49 C. x2 - 49 D. x2 - 14
Mathematics
Solve the problem.For a hyperbolic mirror the two foci are 38 cm apart. The distance of the vertex from one focus is 7 cm and from the other focus is 31 cm. Position a coordinate system with the origin at the center of the hyperbola and with the foci on the y-axis. Find the equation of the hyperbola.
A. 
- 
= 5
B. 
- 
= 5
C. 
- 
= 1
D. 
- 
= 1
Mathematics