Use the data set {d1, d2, d3, ..., d251} consisting of 251 numbers to answer the following question(s).After sorting the data set (in increasing order from left to right), the third quartile is
A. the number in the 189th position.
B. the average of the numbers in the 188th and 189th positions.
C. the number in the 188th position.
D. the sum of the median plus the first quartile.
E. none of these
Answer: B
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Sketch the graph and show all relative extrema and inflection points.y = x5 - 80x
A.
Relative minimum: (2, -48)
Inflection point: (0, 0)
B.
Relative maximum: (-2, 16)
Relative minimum: (2, -16)
Inflection point: (0, 0)
C.
Relative maximum: (2, 128)
Relative minimum: (-2, -128)
Inflection point: (0, 0)
D.
Relative maximum: (-2, 128)
Relative minimum: (2, -128)
Inflection point: (0, 0)
Round the whole number to the given place value.205,829, ten-thousands
A. 200,000 B. 300,000 C. 205,000 D. 210,000
Solve the system of equations by using the inverse of the coefficient matrix if it exists and by the echelon method if the inverse doesn't exist. 2x + y = 2 5x + 3y = 4
A. x = -2, y = 2 B. x = -2, y = -2 C. x = 2, y = -2 D. No inverse, no solution for system
Graph the irrational number on a number line.
A.
B.
C.
D.