Solve the given equation. 2cos²? + 5cos? - 12 = 0
What will be an ideal response?
No solution
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Use the definition of inverses to determine whether f and g are inverses.f(x) = 
, x ? -5; g(x) = x2 + 5
A. No B. Yes
Use the geometric interpretation of slope (rise divided by run) to find the slope of the line. Then, by identifying the y-intercept from the graph, write the slope-intercept form of the equation of the line.
A. y = - x + 5 B. y = x - 5 C. y = - x - 5 D. y = x + 5
Find the focus and the directrix of the parabola.y2 - 4x + 2y - 15 = 0
A. Focus: (-3, -1); directrix: x = -5 B. Focus: (-5, -4); directrix: y = -3 C. Focus: (-5, -1); directrix: x = -3 D. Focus: (0, -4); directrix: y = 8
Solve the problem.A vat contains 23 liters of soup. The soup is to be evenly distributed among 40 cans. How many milliliters will be in each can? Round to the nearest tenth of a milliliter, if necessary.
A. 57.5 mL B. 575 mL C. 920,000 mL D. 0.6 mL