Perform the indicated operation and express with the proper accuracy and precision. The first number given is approximate and the second number is exact. (Use calculator if needed).18.257 - 40.7
A. -22.4
B. -22.443
C. -22
D. 22.443
Answer: B
Mathematics
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Find the first four terms of the binomial series for the given function.(1 + 3x2)3
A. 1 + 9x2 + 9x4 + x6 B. 1 + 9x2 + 27x4 + 27x6 C. 1 + 9x2 + 27x4 + 81x6 D. 1 + 9x2 + 45x4 + 189x6
Mathematics
Find a parametrization for the line segment joining the points.(5, 0, 5), (0, -5, 0)
A. x = -4t, y = 6t - 5, z = -4t, 0 ? t ? 1 B. x = -4t + 5, y = 6t, z = -4t + 5, 0 ? t ? 1 C. x = 5t, y = 5t - 5, z = 5t, 0 ? t ? 1 D. x = -5t + 5, y = -5t, z = -5t + 5, 0 ? t ? 1
Mathematics
Solve.m - 1 ? -5
A. m ? 4 B. m ? -4 C. m ? -6 D. m ? 6
Mathematics
Solve by completing the square.x2 + 8x = 5
A. 4 + 
B. -4 ± 2
C. -4 ± 
D. -1 ± 
Mathematics