The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the system, if it exists.
A. x = -4, y = 0, z = 4
B. x = 0, y = 4, z = -4
C. x = 4, y = 4, z = -4
D. x = -4, y = 4, z = 0
Answer: B
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The formula s = 16t2 is used to approximate the distance s, in feet, that an object falls freely (from rest) in t seconds. Use this formula to solve the problem. (Round answer to the nearest tenth.)A man drops his keys off a building 1210 ft high. How long does it take the keys, falling freely, to hit the ground?
A. About 139.1 sec B. About 8.7 sec C. About 75.6 sec D. About 37.8 sec
Solve the system, if possible.
?
What will be an ideal response?
Solve.A clothing store has a shirt on sale for $17.79. Round this price to the nearest dollar.
A. $17 B. $17.0 C. $17.79 D. $18
Find the inverse of the one-to-one function.f(x) = x9/4
A. f-1(x) = x-9/4
B. f-1(x) = x4/9
C. f-1(x) = 
x
D. f-1(x) = x-4/9