136.
If (x + 2) is a factor of x2 +px - 10, find the value of P.
A.
3
B.
-3
C.
7
D.
-7
Correct answer is B
x + 2 = 0
x -2
x2 = px - 10 = 0
(-2)2 - 2p - 10 = 0
4 - 2p - 10 = 0
−2p−2=6−2 → p = -3
137.
If x = -2.5, what is the value of u on the curve?
A.
y = 8.0
B.
y = 8.5
C.
y = 9.0
D.
y = 9.5
Correct answer is B
If x = -2.5
y = 8.5
138.
Find the point of intersection of the two graphs.
A.
(2.0, 9.0) and (-1.5, 2.0)
B.
(2.0, 8.5) and (-1.5, 2.0)
C.
(2.0, 8.0) and (-1.5, 2.5)
D.
(2.0, 7.5) and (-1.5, 2.5)
Correct answer is A
The point of intersection are (2.0, 9.0) and (-1.5, 2.0)
139.
The interquartile range of distribution is 7. If the 25th percentile is 16, find the upper quartile.
A.
35
B.
30
C.
23
D.
9
Correct answer is C
Q3 - Q1 = 7
Q3 - 16 = 7
Q3 - 7 + 16
= 23
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