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Lesechka [4]
3 years ago
9

A box contains 7 yellow, 5 blue, and 4 red balls. Three balls are drawn at random. Find the probability that:

Mathematics
1 answer:
lesya692 [45]3 years ago
8 0

Answer: 27/80

Step-by-step explanation:

Your dealing with probability this time, not multiplying chooses. So it's adding instead of multiplying.

Total balls, 16

All options: 16 choose 3,

Blue

7 choose 2 * 5 choose 1 / 16 choose 3 = option1

Red

7 choose 2 * 5 choose 1 / 16 choose 3 = option2

Add option1  + 2

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Find the solution to the inequality -0.3x-5<6.7.
I am Lyosha [343]

Answer:

x > -39

Step-by-step explanation:

-0.3x < 6.7 + 5

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6 0
3 years ago
Find the GCF of the monomials: 32x^2 and 24x^2y
aev [14]

Answer:

8x^2

Explanation:

First, do prime factorization of each of the coefficients:

32   ⇒   2^5

24   ⇒   2^3, 3

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Next, find the GCF of the variables:

x^2

x^2, y

The GCF of the variables is x^2.

Finally, multiply the GCF of the coefficients by the GCF of the variables to get:

8x^2

4 0
2 years ago
Convert 2x-y=-7 into slop-intercept form​
kykrilka [37]
I believe the answer is y=2x+7
7 0
3 years ago
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What is 3/4 + 2/3 ???
erica [24]
To add fractions, first convert them to have equal denominators.

3/4= 9/12 (multiply both sides by 3)
2/3= 8/12 (multiply both sides by 4)

From here, add the numerators while keeping the denominator.
9/12+ 8/12= 17/12

Final answer: 17/12 or 1 5/12
3 0
3 years ago
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