Box Plots — Cumulative exam Answers
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What is the factorization of 81a6 - 100?
A
(9a2 − 10)(9a3 + 10)B
(9a2 − 10)(9a3 − 10)C
(9a3 − 10)(9a3 + 10)D
(9a3 − 10)(9a3 − 10)22
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Which best describes the strength of the model with an r-value of –0.93?
A
a weak positive correlationB
a strong positive correlationC
a weak negative correlationD
a strong negative correlation23
Eighty members of a bike club were asked whether they like touring bikes and whether they like mountain bikes. A total of 70 like touring bikes, 47 like mountain bikes, and 5 do not like either. What are the correct values of a, b, c, d, and e?
A
a = 42, b = 28, c = 33, d = 5, e = 10B
a = 42, b = 5, c = 28, d = 33, e = 10C
a = 5, b = 42, c = 28, d = 10, e = 33D
a = 5, b = 10, c = 28, d = 33, e = 4224
Which is the graph of a quadratic equation that has a negative discriminant?
A
On a coordinate plane, a parabola opens down. It goes through (negative 4, negative 4), has a vertex at (negative 2, 0), and goes through (0, negative 4).
B
On a coordinate plane, a parabola opens down. It goes through (negative 4, negative 4), has a vertex at (negative 2, 0), and goes through (0, negative 4).
C
On a coordinate plane, a parabola opens up. It goes through (negative 4, 4), has a vertex at (negative 2, 0), and goes through (0, 4).
D
On a coordinate plane, a parabola opens up. It goes through (negative 4, 8), has a vertex at (negative 2, 4), and goes through (0, 8).
25
Which graph shows a system of equations with a solution at (2, –1)?
A
Option
B
Option
C
Option
D
Option
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