Provide an appropriate response.A study is done relating the ages and systolic blood pressures (measured in millimeters of mercury) of 9 randomly selected adults. The best-fit line for the data is found to be Pressure = 1.488(Age) + 60.46. Determine the residual if a person is 51 years old and has blood pressure of 142.
A. 136.348
B. 5.652
C. -220.756
D. 278.348
Answer: B
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = - 4 and x = 4. The cross sections perpendicular to the x-axis are circular disks whose diameters run from the parabola y = x2 to the parabola y = 32 - x2.
A. 
?
B. 
?
C. 
?
D. 
?
Solve the system of linear equations.
A. (-1, -3, 3) B. no solution C. (-1, 3, -3) D. (3, -3, -1)
Solve the problem by combining like terms.The value of 8 dimes is 10 ? 8 = 80 cents. Likewise, the value of x dimes is 10x cents. If George finds 
nickels, 6x dimes, and x quarters in his change jar, express the total value of change in cents as an algebraic expression.
A. 105x - 10 cents B. 105x - 2 cents C. 105x + 10 cents D. 80x - 10 cents
Provide an appropriate response.Solve the system of equations using the addition method: 4x - y = 9 -x + y = -3
A. x = -1, y = 2 B. x = 2, y = -1 C. x = -1, y = -5 D. x = 5, y = 2