Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Three coins are tossed, and the number of heads is noted.
A. 
B. 
C. 
D. 
Answer: B
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Solve.Find the center, foci, and vertices of the ellipse 36(x - 1)2 + 16(y + 2)2 = 576
A. center at (-2, 1)
foci at (-2, 1 - 2
), (-2, 1 + 2
)
vertices at (-2, 4), (-2, -8)
B. center at (-1, -2)
foci at (-1, -2 - 2
), (-1, -2 + 2
)
vertices at (-1, 4), (-1, -8)
C. center at (2, -2)
foci at (2, -2 - 2
), (2, -2 + 2
)
vertices at (2, 4), (2, -8)
D. center at (1, -2)
foci at (1, -2 - 2
), (1, -2 + 2
)
vertices at (1, 4), (1, -8)
Let 
. If x is multiplied by 5, how is ?y affected?
?
A. y is multiplied by 125 B. ?y is multiplied by 243 C. 125 is added to y D. 243 is added to y
Graph each number on the number line.-4.75, -2, 0, 2.25
A. 
B. 
C. 
D. 
Write the complex number in rectangular form.9(cos 80° + i sin 80°)
A. -0.5 - 3i B. 8.9 + 1.6i C. 0.5 + 3i D. 1.6 + 8.9i