Solve the inequality and give the solution in interval notation.a - 6 < -7

A. (-?, -1)
B. (-?, -13]
C. (-1, ?)
D. (-?, -13)


Answer: A

Mathematics

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Solve the problem.A surveyor standing 69 meters from the base of a building measures the angle to the top of the building and finds it to be 37°. The surveyor then measures the angle to the top of the radio tower on the building and finds that it is 49°. How tall is the radio tower?

A. 27.38 m B. 10.55 m C. 14.67 m D. 9.84 m

Mathematics

Find the domain. Write interval notation for the answer.f(x) = 

A. (-?, 2) ? (2, ?) B. (-?, 0) ? (3, ?) C. (-?, -3) ? (-3, 0) ? (0, ?) D. (-?, -3) ? (-3, 2) ? (2, ?)

Mathematics

Find the expression.u = -4i - 4j, v = 8i + 7jFind u + v.

A. 4i + 3j B. -12i + 3j  C. 12i + 3j D. 3i + 3j 

Mathematics

Determine the vertex and the x-intercepts. Then sketch the graph.y = x2 + 7x + 10

A.

Vertex:  ;
x-intercepts: (2, 0) and (5, 0)
B.

Vertex:  ;
x-intercepts: (2, 0) and (5, 0)
C.

Vertex: ;
x-intercepts: (-2, 0) and (-5, 0)
D.

Vertex: ;
x-intercepts: (-2, 0) and (-5, 0)

Mathematics