Find the sum or difference. Write the answer in standard form.i
+ 1 - (7 + 8i
) - (6 - i
)
A. -12 - 6i
B. -12 + 6i
C. 12 - 10i
D. -12 - 10i
Answer: A
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Solve the problem.A building has an entry with the shape of a parabolic arch 34 feet high and 20 feet wide at the base. Find an equation for the parabola if the vertex is placed at the origin of the coordinate system.
A. x2 = -2.9y B. x2 = -11.8y C. y2 = -11.8x D. y2 = -2.9x
Provide an appropriate response.Find the magnitude of the vector in standard position with end point (5, -2).
A. 6.4 B. 5.4 C. 4.6 D. 1.5
Solve the inequality. Graph the solution set and write it in interval notation.x + 12 < 20
A. (8, ?)
B. (-?, 8]
C. (-?, 8)
D. [8, ?)
Solve the problem. Round your answer to the nearest tenth unless indicated otherwise.Runners in a 26 km race run how many miles?
A. 27.6 mi B. 41.9 mi C. 13.0 mi D. 16.1 mi