Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = 5, y = -3, z = -6; (5, -3, -6)
B. x = 6, y = 1, z = 6; (6, 1, 6)
C. x = 5, y = 3, z = 6; (5, 3, 6)
D. x = 3, y = 6, z = 3; (3, 6, 3)
Answer: C
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Solve the problem.Two boats are pulling a disabled vessel toward the landing dock with forces of 840 lb and 820 lb. The angle between the forces is 29.6°. Find the direction and magnitude of the equilibrant.
A. 1605 lb at an angle of W 75.4° Nwith the 820-lb force B. 1605 lb at an angle of W 14.6° N with the 840-lb force C. 1605 lb at an angle of N 14.6° W with the 840-lb force D. 160 lb at an angle of N 75.4° W with the 840-lb force
For the given statement Sn, write the statements S1, Sk, and Sk+1.12 + 22 + 32 + . . . + n2 = 
What will be an ideal response?
Write in standard notation.
A. 0.0000025 B. -0.0000025 C. 25,000 D. -25,000
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.A chemist needs 210 milliliters of a 49% solution but has only 16% and 79% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 103 ml of 16%; 107 ml of 79% B. 110 ml of 16%; 100 ml of 79% C. 100 ml of 16%; 110 ml of 79% D. 103 ml of 16%; 110 ml of 79%