Decide if the answer is reasonable or unreasonable by rounding the numbers and estimating the answer. If the answer is not reasonable, find the correct answer.36.9 ÷ 4 = 92.25
A. Unreasonable, should be 0.9225
B. Reasonable
C. Unreasonable, should be 0.09225
D. Unreasonable, should be 9.225
Answer: D
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Solve the equation for x and y.x + 3j - 14j = yj + 2j2
A. x = -11, y = 2 B. x = -2, y = -11 C. x = -11, y = -2 D. x = 2, y = -11
Use cross products to determine whether the pair of fractions is equivalent.
and 
A. equivalent B. not equivalent
Match the equation of the ellipse with the appropriate description. 
+ 4y2 = 6400
A. x-intercepts (2500, 0), (-2500, 0); y-intercepts (0, 89), (0, -89)
B. x-intercepts (50, 0), (-50, 0); y-intercepts (0, 40), (0, -40)
C. x-intercepts (40, 0), (-40, 0); y-intercepts (0, 50), (0, -50)
D. x-intercepts 
, 
; y-intercepts (0, 80), (0, -80)
Answer the question.Which one of the equations below matches the graph?
A. y = 3 cos(4x)
B. y = -3 sin(4x)
C. y = 3 sin
D. y = 3 cos