Solve the equation.1.3x - 2.7 = 0.8x - 0.65
A. 4.2
B. 4.1
C. -0.244
D. 4.51
Answer: B
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Find the volume of the described solid.The base of a solid is the region between the curve y = 5cos x and the x-axis from x = 0 to x = ?/2. The cross sections perpendicular to the x-axis are squares with diagonals running from the x-axis to the curve.
A. 6?
B. 
?
C. 
?
D. 
?
Solve.Horsepower developed by an engine is directly proportional to its displacement. How many horsepower will be developed by an engine with a displacement of 320 cu in. if a 280-cu in. engine of the same kind develops 200 hp? (Round to the nearest whole number, if necessary.)
A. 224 hp B. 229 hp C. 240 hp D. 232 hp
Find all possible functions with the given derivative.y' = 1 + 
A. y = x - 
+ C
B. y = 6 ln 
+ C
C. y = x + 6 ln 
+ C
D. y = - 
+ C
Solve the equation.(y - 8) - (y + 7) = 4y
A. 
B. 
C. 
D. 