Solve for x using an equivalent exponential expression.A drapery panel measures 3 feet by 10 feet. Find how many square feet of material are needed for six panels.
A. 150 sq ft
B. 36 sq ft
C. 180 sq ft
D. 30 sq ft
Answer: C
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Solve the inequality. Graph the solution set and write it in interval notation.1.4x - 3.8 > 0.8x - 2.48
A. (-?, 2.1)
B. (2.1, ?)
C. (2.2, ?)
D. (-?, 2.2)
Solve the problem.Consider a small region inside an elastic material such as gelatin. As the material "jiggles", this small region oscillates about its equilibrium position (xo, yo, zo). The force that tends to restore the small region to its equilibrium position can be approximated as F = - k(x - xo)i - k(y - yo)j - k(z - zo)k Find a potential function f for this force field.
What will be an ideal response?
Graph the solution of the rational inequalities on a number line and write the solution in interval notation. 
> 0
A. (4, ?)
B. (-?, -8)
C. (-8, 4)
D. (-?, -8) ? (4, ?)
Solve the problem.The function A = A0e-0.01155x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 500 pounds of the material are placed in the vault, how much time will need to pass for only 140 pounds to remain?
A. 220 years B. 120 years C. 110 years D. 115 years