Factor completely.u2 - 4uv - 45v2 = (u + 5v)( 
)
A. u + 9v2
B. u + 9v
C. u - 9v
D. u - 9
Answer: C
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Rewrite the given expression using an appropriate variable. Use the first letter of the given word as the variable.99 - (Years)
A. Y ÷ 99 B. 99 ? Y C. 99 - Y D. 99 + Y
Indicate whether the ordered pair is or is not a solution to the given system.
(6, -1)
A. Yes B. No
Solve the equation by factoring.25y2 + 30y + 9 = 0
A. 
, 
B. 
, - 
C. - 
, - 
D. - 
, - 
Solve the problem.When pouring water from one five gallon bucket to another, a person tends to pour at a faster rate at first and then slow down in order not to spill. The amount of water left in the original bucket can be approximated by 
where f(t) is measured in gallons and t is the time spent pouring in seconds. Find the approximate amount of water left in the original bucket after 6 seconds of pouring. Round to the nearest hundredth.
A. 2.37 gal B. 4.38 gal C. 2.63 gal D. 4.22 gal