Solve.3x(x - 5) = -4

A.
B. - 
C.
D.


Answer: C

Mathematics

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Part of $6,000 is invested at 9%, another part at 11%, and the remainder at 12% yearly interest. The total yearly income from the three investments is $650. The sum of the amounts invested at 9% and 11% equals the amount invested at 12%. How much is invested at each rate? 

A. $2,000 at 9%, $1,000 at 11%, and $3,000 at 12% B. $1,500 at 9%, $0 at 11%, and $3,500 at 12% C. $3,000 at 9%, $0 at 11%, and $3,000 at 12% D. $1,500 at 9%, $1,000 at 11%, and $3,500 at 12% E. $2,500 at 9%, $2,000 at 11%, and $2,000 at 12%

Mathematics

Find the derivative.f(x) = (5x5 - 3x4 + 4)304

A. 304(25x4 - 12x3)303 B. 304(5x5 - 3x4 + 4)303 C. 304(5x5 - 3x4 + 4)303(5x4 - 4x3) D. 304(5x5 - 3x4 + 4)303(25x4 - 12x3)

Mathematics

Evaluate the integral.

A. 10? B. 15? C. 10 D. 15

Mathematics

Solve the application.A sports cooler contains 3 gallons of liquid. If a basketball team drinks 1 cups during a game, how much liquid is left in the cooler?

A.  gallons
B. 3 gallons
C.  gallons
D. 2 gallons

Mathematics