A thin wire is bent into the shape of a semicircle x² + y² = 4, x > 0. If the linear density is 3, find the exact mass of the wire. Select the correct answer.
a. 6?²
b. 2?
c. 18?
d. 3?
e. 6?
e. 6?
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Solve the equation.8x - (6x - 1) = 2
A. 
B. 
C. 
D. 
Solve the problem.To produce a calculator, Cal Industries signed a note on April 2 for $86,400, due in 120 days at 14% interest. On May 5 they made a payment of $20,000, and on June 1 another of $25,000. Find the amount due on the maturity date and the interest charged.
A. $45,112.15, $3652.15 B. $44,624.45, $3164.45 C. $44,226.05, $2826.05 D. $43,914.25, $2514.25
Use a graphing calculator to estimate the solution set of the equation. Round to the nearest hundredth.ex = 8
A. {2980.96} B. {0.90} C. {2.08} D. {285.01}
Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.y = (x + 9)(x - 9)
A. Origin only B. x-axis only C. x-axis, y-axis, origin D. y-axis only