Solve the equation.19t - 47 = 7t - 15
A. 
B. - 
C. - 
D. - 
Answer: A
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Find the volume of the described solid.The base of a solid is the region between the curve y = 3cos x and the x-axis from x = 0 to x = ?/2. The cross sections perpendicular to the x-axis are isosceles right triangles with one leg on the base of the solid.
A. 
?
B. 2?
C. 
?
D. 
?
Write the English phrase as an algebraic expression. Let the variable x represent the number.the product of four and eight more than a number
A. (4 + 8)x B. 4 + 8 ? x C. 4(x + 8) D. 4 ? 8 + x
Simplify the expression. If the expression contains any variables, assume that they represent positive real numbers. Write your answer with only positive exponents.
A. 
B. 4
C. 46
D. 4x
Graph the solution set of the system of inequalities or indicate that the system has no solution.x2 + y2 ? 36-5x + 2y ? -10
A. 
B. 
C. 
D. 