Solve the problem.According to Ohm's law, the electric current I, in amperes, in a circuit is directly proportional to the voltage V. When 29 volts are applied, the current is 2 amperes. What is the current when 28 volts are applied?
A. 14.5 amperes
B. 406 amperes
C. 59 amperes
D. 1.93 amperes
Answer: D
Mathematics
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Use the fundamental counting principle to count the number of outcomes. A local department store sold carpets in 3 sizes. Each carpet came in 2 qualities. One size of carpet came in 5 colors. The other sizes came in 3 colors. How many choices of carpet were there?
A. 28 B. 27 C. 22 D. 30
Mathematics
Factor the polynomial by removing the common monomial factor. 48x8y8 + 24x3y6 - 32x6y2
A. 8x3(6x5y8 + 3y6 - 4x3y2) B. 8x3y2(6x5y6 + 3y4 - 4x3) C. 8(6x8y8 + 3x3y6 - 4x6y2) D. x3y2(48x5y6 + 24y4 - 32x3)
Mathematics
Add or subtract as indicated.3 + 5 - (-11)
A. -13 B. -3 C. -19 D. 19
Mathematics
Solve the system.x - 7y = 5-3x + 21y = - 15
A. 
B. 
C. ?
D. 
Mathematics