Solve the cubic equation using factoring and the quadratic formula.x3 - 64 = 0
A. {4, 2 ± 2
}
B. {4, -2 ± 2i
}
C. {4, 2 ± 2i
}
D. {4, -2 ± 2i}
Answer: B
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Use Euler's method with the specified step size to estimate the value of the solution at the given point x*. Find the value of the exact solution at x*.y' = 2xex2, y(0) = 4, dx = 0.1, x* = 1
A. Euler's method gives y ? 5.7183; the exact solution is 6.2619 B. Euler's method gives y ? 5.4584; the exact solution is 5.7183 C. Euler's method gives y ? 6.0042; the exact solution is 5.9901 D. Euler's method gives y ? 4.9125; the exact solution is 5.4465
Solve the problem.A rectangular field is to be enclosed on four sides with a fence. Fencing costs $5 per foot for two opposite sides, and $3 per foot for the other two sides. Find the dimensions of the field of area 850 ft2 that would be the cheapest to enclose.
A. 48.6 ft @ $5 by 17.5 ft @ $3 B. 22.6 ft @ $5 by 37.6 ft @ $3 C. 37.6 ft @ $5 by 22.6 ft @ $3 D. 17.5 ft @ $5 by 48.6 ft @ $3
Write the sentence as an equation or inequality. Use x to represent any unknown number.Six is not equal to ten divided by two.
A. 6 ? 10 B. 6 = 10 ÷ 2 C. 6 ÷ 2 ? 10 D. 6 ? 10 ÷ 2
Find A + B.
?
?
A. 
B. 
C. 
D. 
E. 