Write the system in the form 
Then solve the linear system by computing 
with a calculator. Round numbers to the nearest tenth, as necessary.1.6x + 17.9y - 4.7z = 1.23.1x - 7.0y - 1.3z = -3.23.8x + 18.9y + 3.8z = 9.7
A. (0.1, 0.3, 0.9)
B. (0.0, 0.1, 0.4)
C. (0.1, 0.7, 2.1)
D. (0.0, 0.1, 0.2)
Answer: A
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Find the limit.
A. 1 B. ? C. 0 D. No limit
State the instructions of the function in words.f(z) = 6(10z + 5) - 3
A. Multiply the independent variable by 10. Add 5 to this product. Multiply this result by 6. Then subtract 3 from this product. B. Add 5 to the independent variable. Multiply the result by 10. Multiply this result by 6. Then subtract 3 from this product. C. Multiply the independent variable by 6 and then by 10. Add 2 to this result. D. Multiply the independent variable by 10. Add 5 and subtract 3 from this product. Multiply the result by 6.
Use reduction formulas to evaluate the integral.
A. 
cos5 x - 
cos7 x + C
B. 
sin5 x - 
cos9 x + C
C. 
(sin7 x - sin9 x) + C
D. 
sin7 x - 
sin9 x + C
Write the quotients with positive exponents.
A. 4k B. 15 C. 4k2 D. 15k2