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vaieri [72.5K]
2 years ago
7

Of the 30 students in the sixth period math class, 8 are also in the same fourth period science class. Which can be used to dete

rmine the probability that if three students are chosen at random from the math class to do a group project, the first student chosen to be in the group is in the fourth period science class but the other two are not?
Mathematics
2 answers:
Lerok [7]2 years ago
8 0

Answer: A is the correct answer

Step-by-step explanation:

dexar [7]2 years ago
6 0

Answer:

A: (8/30)(22/29)(21/28)

Step-by-step explanation:

edge 2020

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to the tenths place, 32.86

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Which of the following represents the eccentricity of a ellipse
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The eccentricity of an eclipse is found by using the formula, eccentricity = c/a

Where,
c represents the distance between the center and a focus.
a represent the distance between that focus and a vertex

 

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6 0
3 years ago
Calvin has $8.80 in pennies and nickels. If there are twice as many nickels as pennies, how many pennies does Calvin have? How m
Ray Of Light [21]

Let X = the number of pennies.

The number of nickels would be 2X

A penny is 0.01 and a nickel is 0.05

Now you have:

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0.01x + 0.10x = 8.80

Combine like terms:

0.11x = 8.80

Divide both sides by 0.11:

x = 8.80 / 0.11

x = 80

Pennies = X = 80 total pennies.

Nickels = 2x = 2 *80 = 160 nickels.

7 0
3 years ago
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