The base of a solid is the region bounded by the graphs of y = 4 – x2 and y = 0. The cross sections perpendicular to the y-axis are equilateral triangles. Find the volume of the solid.
What will be an ideal response?
Mathematics
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Which of the following is not equivalent to the following expression: 7x - 7? ?
A. seven less than seven times a number. B. seven times a number decreased by 7. C. ?7(x - 7) D. seven subtracted from seven times a number. E. ?none of the above.
Mathematics
Write the equation of the line with the given conditions.passing through (2, 4) and perpendicular to the line with equation -4x + y = 3
A. y = - 
x + 
B. y = - 4x - 18
C. y = - 
x - 
D. y = 
x - 
Mathematics
Write the expression in lowest terms.
A. x2 + 25 B. x2 - 5 C. x2 - 25x + 5 D. x2 - 5x + 25
Mathematics
Solve. 2x2 + 70 = 24x
A. -7, 5 B. -5, 7 C. -7, -5 D. 5, 7
Mathematics