Solve the equation.0.5x - 0.2(20 + x) = 0.25(20)
A. {30}
B. {15}
C. {40}
D. {20}
Answer: A
Mathematics
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Evaluate the integral by changing the order of integration in an appropriate way.
A. 3 ln 2 (e - 1)
B. 
ln 2 (e - 1)
C. 
ln 3 (e - 1)
D. 3 ln 3 (e - 1)
Mathematics
Use your knowledge of multiplying signed numbers along with the techniques of multiplying decimals to find the product.-0.5 × 0.7
A. -0.35 B. -0.035 C. 0.035 D. 0.35
Mathematics
Find the composition. If f(x) = x2 + 6x and g(x) = x + 2, find ( g ? f)(4)
A. 72 B. 42 C. 44 D. 240
Mathematics
Evaluate the expression.P(8, 3)
A. 336 B. 168 C. 6720 D. 240
Mathematics