Solve the radical equation.
- 
= 1
A. {-3, -1}
B. {3, -1}
C. {3}
D. no real solution
Answer: B
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Solve and check:
A set of n = 15 pairs of scores (X and Y values) has SSX = 4, SSY = 25, and SP = 6. What is the Pearson correlation for these data?
a. 6/(10/sqrt(15)) b. 6/10 c. 6/(100/15) d. 6/100
Find the area A. Round the answer to three decimal places.
A. 2.356 yd2 B. 4.712 yd2 C. 1.5 yd2 D. 0.785 yd2
Find the center, transverse axis, vertices, and foci of the hyperbola.25y2 - 36x2 = 900
A. center at (0, 0)
transverse axis is x-axis
vertices: (-5, 0), (5, 0)
foci: (- 
, 0) , (
, 0)
B. center at (0, 0)
transverse axis is y-axis
vertices at (0, -6) and (0, 6)
foci at (0, - 
) and (0, 
)
C. center at (0, 0)
transverse axis is x-axis
vertices: (-6, 0), (6, 0)
foci: (-5, 0), (5, 0)
D. center at (0, 0)
transverse axis is y-axis
vertices: (0, -6), (0, 6)
foci: (- 
, 0) , (
, 0)