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kramer
3 years ago
8

A local concert center reports that it has been experiencing a 15% rate of no-shows on advanced reservations. Among 150 advanced

reservations, find the probability that there will be fewer than 20 no-shows. Round the standard deviation to three decimal places to work the problem.
A) 0.7967
B) 0.3187
C) 0.2451
D) 0.754
Mathematics
1 answer:
Doss [256]3 years ago
3 0

Answer: C

Step-by-step explanation:

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jarptica [38.1K]
First, you would find a common denominator which is 12. You would then get 5/12 and 7/12 or 20/48 and 28/48. Using this you can see that their are 8 more girls than boys in the play. Hope you found this helpful!
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Which sequence of transformations does not preserve distance and angle? rotation and reflection
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Answer: <span>rotation and dilation.

While rotation only rotates (obviously) the figure, dilation preserves the shape of the figure (that is, preserves the angles) but changes the distances: it makes the figure smaller.
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The other 2 sequences of transformations only change the position of the figure, but the angles and distances remain intact.
6 0
4 years ago
Read 2 more answers
Given the equation for the total surface area of a cylinder, solve for the height of the cylinder.
Tju [1.3M]

Answer:

Let S be the total surface area.  Then

h = ( S - 2 Pi r^2) / ( 2 Pi r)

Discussion:

Let S be the total surface area.  Then

S =                      2Pi r*h + 2 Pi r^2        => subtract 2 PI r^2 from both sides

S - 2 PI r^22 =   2 PI r*h                         => divide both sides by 2 PI r

h = ( S - 2 Pi r^2) / ( 2 Pi r)

Thank you,

MrB

Step-by-step explanation:

6 0
3 years ago
9. Solve the system by substitution. (1 poin
shtirl [24]

Answer:

i feel bad theyre making you do this

but its the last O

Step-by-step explanation:

7 0
3 years ago
5/9(g + 18) = 1/6g +3​
dangina [55]

For this case we have the following equation:

\frac {5} {9} (g + 18) = \frac {1} {6} g + 3

Applying distributive property on the left side of the equation we have:

\frac {5} {9} g + \frac {5 * 18} {9} = \frac {1} {6} g + 3\\\frac {5} {9} g + \frac {90} {9} = \frac {1} {6} g + 3\\\frac {5} {9} g + 10 = \frac {1} {6} g + 3

Subtracting \frac {1} {6} g to both sides of the equation:

\frac {5} {9} g- \frac {1} {6} + 10 = 3\\\frac {6 * 5-9 * 1} {9 * 6} g + 10 = 3\\\frac {30-9} {54} g + 10 = 3\\\frac {21} {54} g + 10 = 3\\\frac {7} {18} g + 10 = 3

Subtracting 10 to both sides of the equation:

\frac {7} {18} g = 3-10\\\frac {7} {18} g = -7

Multiplying by 18 on both sides:

7g = -7 * 18\\7g = -126

Dividing between 7 on both sides:

g = \frac {-126} {7}\\g = -18

Thus, the value of g is -18.

ANswer:

g = -18

8 0
3 years ago
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