Given the terms of a finite sequence, classify it as arithmetic, geometric, or neither.6, 4, -8, -13, -16
A. Geometric
B. Neither
C. Arithmetic
Answer: B
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Use mathematical induction to prove the statement is true for all positive integers n.
= (n + 2)(n + 1)
What will be an ideal response?
Perform the division.
A. 7x - 7
B. 7x - 21x3 + 
C. 7x - 7 + 
D. 12x - 7
Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given angle. Give exact answers with rational denominators.Find cos A when a = 7 and b = 6.
A. 
B. 
C. 
D. 
Solve the problem.A satellite dish is shaped like a parabola. The signals that are received by the dish strike the surface of the dish and are reflected to a single point, where the receiver of the dish is located. If the dish is 10 feet across at its opening and 3.1 feet deep at its center, at what position should the receiver be placed?
A. 0.2 feet from the base along the axis of symmetry B. 12.5 feet from the base along the axis of symmetry C. 6.3 feet from the base along the axis of symmetry D. 2 feet from the base along the axis of symmetry