Solve the system. Express the solution in the form (x, y, z, w). 6x - 6z + w = 6-x + y + 6z - w = -26 5x - y + 6w = -30 y + 6z - w = -31
A. {(-5, 5, -6, 0)}
B. {(-10, 0, -7 , 1)}
C. {( 0, -5 , 5, 5)}
D. {(5, 7, -6, -1)}
Answer: A
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Given the series  FIGURE 1.png)
estimate the error in using the partial sum  Figure 2.png)
by comparison with the series  Figure 3.png)
What will be an ideal response?
Solve the problem.An insurance company has written 98 policies of $50,000, 499 of $25,000, and 946 of $10,000 on people of age 20. If the probability that a person will die at age 20 is .001, how much can the company expect to pay during the year the policies were written?
A. $26,835 B. $2684 C. $0 D. $268,350
Solve the equation.4(9 - 3x) = 64
A. {-2} B. {1} C. {2} D. {3}
Compare the graph of f(x) with the graph of y = x2.f(x) = 
x2
A. Reflected across the x-axis and wider B. Wider C. Reflected across the x-axis and narrower D. Narrower