Simplify.
? 
A. 21
B. 21
C. 18
D. 42
Answer: D
Mathematics
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Divide.56 ÷ (-7)
A. 9 B. 8 C. -9 D. -8
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Write the mixed number as an improper fraction.-11
A. - 
B. - 
C. - 
D. - 
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Provide an appropriate response.Solve: 2(t - 1) - 3(t - 4) = 4t
Fill in the blank(s) with the appropriate word(s).
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The power, in watts, dissipated as heat in a resistor varies jointly with the resistance, in ohms, and the square of the current, in amperes. A 15-ohm resistor carrying a current of 1 ampere dissipates 15 watts. How much power is dissipated in a 30-ohm resistor carrying a current of 5 amperes? ? __________ watts
Fill in the blank(s) with the appropriate word(s).
Mathematics