Write a quadratic equation having the given numbers as solutions. - 
, - 
A. 2x2 - 
x + 7 = 0
B. 2x2 + 
x + 7 = 0
C. 2x2 + 21x - 9 = 0
D. 2x2 - 9x + 21 = 0
Answer: B
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Find the perimeter of the polygon described. Answer the question with a sentence.A tile on a kitchen floor is in the shape shown below. What is the perimeter of the tile? 
A. The perimeter of the tile is 30 in. B. The perimeter of the tile is 25 in. C. The perimeter of the tile is 32 in. D. The perimeter of the tile is 9 in.
Identify the complex number as real or imaginary.
A. Imaginary B. Real
Let x be a number. Translate the English phrase or sentence into a mathematical expression. Four less than a number
A. 4 - x B. 4x C. x ÷ 4 D. x - 4
Find the value of s in the interval [0, ?/2] that makes the statement true. Round to four decimal places.cot s = 8.3683
A. 1.1643 B. 1.5935 C. 0.1189 D. 3.2605