Determine if the given ordered triple is a solution of the system. x + y + z = -10 x - y + 5z = -245x + y + z = -18(-5, -3, -2)
A. Yes
B. No
Answer: B
Mathematics
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Multiply using the special product rules for binomials.(4x2 - 5y)2
A. 16x2 - 40x2y + 25y2 B. 16x4 - 41x2y + 25y2 C. 8x4 - 20x2y + 10y2 D. 16x4 - 40x2y + 25y2
Mathematics
Estimate the error in the quadratic approximation of the given function at the origin over the given region.
A. |E(x, y)| ? 0.4122 B. |E(x, y)| ? 0.2748 C. |E(x, y)| ? 0.2061 D. |E(x, y)| ? 0.8244
Mathematics
Factor the expression completely.5x4 - 80
A. (5x2 + 4)(x - 2)(x + 2) B. 5(x2 + 4)(x2 + 4) C. 5(x2 + 4)(x - 2)(x - 2) D. 5(x2 + 4)(x - 2)(x + 2)
Mathematics
Find the probability.What is the probability that 20 rolls of a fair die will show 8 threes? Round to the nearest ten-thousandth.
A. 0.0017 B. 0.0168 C. 0.0084 D. 0.0042
Mathematics