Solve the problem.Evaluate 
at (u, v) = (3, 4) for the function w(x, y, z) = xz + yz - z2; x = uv, y = uv, z = u.
A. 42
B. -6
C. 0
D. 48
Answer: A
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The speed of sound c, in meters per second, at a fixed depth and temperature in the ocean depends on the salinity S, in parts per thousand. The following table shows selected data. Round your answer to two decimal places, if necessary. S 35 35.6 36.2 36.8 c 1515.36 1516.08 1516.8 1517.52? A: Complete a table of changes to show that the data are linear.B: Find a linear model for the data.C: Explain in practical terms the meaning of the slope for the linear function in part B.
What will be an ideal response?
Multiply.0.06
A. 4.8 B. 0.0048 C. 0.048 D. 0.48
Solve the problem.There were 883 billionaires in a certain country this year and 81 billionaires in this same country two years ago. Find the unit ratio of the number of billionaires this year to the number from two years ago. What does your result mean in this situation?
A. 
; The number of billionaires this year was 11.6 times greater than two years ago.
B. 
; The number of billionaires this year was 0.1 times greater than two years ago.
C. 
; The number of billionaires this year was 10.9 times greater than two years ago.
D. 
; The number of billionaires this year was 10.5 times greater than two years ago.
Solve the polynomial inequality by graphing.(x + 4)(x2 - 4) > 0
A. (-4, 2) B. (-?, -2) ? (2, ?) C. (-4, -2) ? (2, ?) D. (-?, 2) ? (2, 4)