Use graphical methods to find all real solutions to the following equation. Express solutions rounded to the nearest hundredth.2x3 + x2 - 10x - 5 = 0
A. {-2, 2.34, -2.34}
B. {-0.50, 2.24, -2.24}
C. {2, 2.14, -2.14}
D. {0.50, 2.24, -2.24}
Answer: B
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Solve the exponential equation. Round to three decimal places when necessary.
= 3
A. -0.203 B. -0.693 C. 1.099 D. No solution
Solve the problem.A water tank is formed by revolving the curve y = 5x4 about the y-axis. Find the volume of water in the tank as a function of the water depth, y.
A. V(y) = 
y9
B. V(y) = 
y3/2
C. V(y) = 
y1/2
D. V(y) = 
y3/2
Solve the indicated equation analytically.The weekly sales in thousands of items of a product has a seasonal sales record approximated by 
where t is the time in weeks with t = 1 referring to the first week in the year. During which week(s) will the sales equal 99,650 items?
A. week 4, week 20, and week 52 B. week 21 and week 30 C. week 30 and week 47 D. week 4 and week 47
Solve the system using matrices. 6x - y + 9z = 219x + 7z = 342y+ z = 13
A. No solution B. (-3, 6, 6) C. (3, 1, 6) D. (3, 6, 1)