Find all real solutions. Do not use a calculator.x3 + 8x2  = x + 8

A. {±1, 8}
B. {±1, -8}
C. {1, -2, 10}
D. {±1, -9}


Answer: B

Mathematics

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Use Stokes's Theorem to calculate .F = x5i + 9xj + 5k; S is the upper hemisphere of x2 + y2 + z2 = 100

A. ? B. 100 C. 100? D. 900?

Mathematics

Identify the function's local and absolute extreme values, if any, saying where they occur.f(r) = (r - 10) 3

A. no local extrema B. local minimum: x = 0 C. local minimum: x = 10 D. local minimum: x = 0; local maximum: x = 10

Mathematics

Order the rational numbers from least to greatest.

A.
B.
C. Equivalent

Mathematics

Solve.The hypotenuse of a right triangle is 13 feet long. One leg of the triangle is 3 feet longer then the other leg. Find the perimeter of the triangle.

A. ( - 13) ft
B.  ft
C. ( + 13) ft
D.  ft

Mathematics