Add or subtract. Simplify by combining like radical terms, if possible.-6
- 4
+ 7
A. -23
B. 7
C. -6
D. -7
Answer: A
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Use a calculator to find a graphical solution to the equation. Express results to the nearest thousandth.x2 - 9x = 3
A. 13.822, 13.822 B. 8.653, 0.347 C. 9.322, -0.322 D. 0.322, -9.322
Solve the problem.The logarithmic function f(x) = -100 + 87 ln x models the number of visitors (in millions) to a certain country's museums, where x is the number of years since the initial recording of the number of visitors. Use this function to estimate the number of visitors in year 60. Round to the nearest tenth of a year.
A. 128.1 million B. 384.3 million C. 256.2 million D. 192.2 million
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.2x + 5y + z = -64x - 3y - z = 243x + y + 3z = 12
A. {(1, -3, 4)} B. {(4, 1, -3)} C. {(4, -3, 1)} D. Cramer's rule does not apply since D = 0; ?
Find the reference angle for the given angles.
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