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elena-s [515]
3 years ago
15

In a group of 30 students, the probability that at most 25 of them like to swim

Mathematics
1 answer:
Lostsunrise [7]3 years ago
4 0

Answer:

P(A) = at most 25 of them like to swim

P(B) = at least 26 of them like to swim

P(A) +P(B) = 100%

=> P(B) = 100-P(A) = 100-38 =62%

=> B is correct

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Mila [183]

Answer:

B: y = -2/3x - 10/3

Step-by-step explanation:

The point is at (-2,-2), therefore when you input -2 into the desired equation, it should yield -2 as our output. If we use the equation B, the equation becomes

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To find the line yourself we use the point slope formula

y - y1 = m(x - x1)

The line is parallel to the one on the graph so the slope or <em>m</em> is equal to -2/3

We input the coordinates we want for y1 and x1.

y - (-2) = -2/3 (x - (-2))

y + 2 = -2/3x - 4/3

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3 0
2 years ago
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6.8(6.7 – 7.2) – 2(4.6 + 1.2) = ???????
Gnesinka [82]

Answer:

6.8(6.7 – 7.2) – 2(4.6 + 1.2) =-15

Step-by-step explanation:

3 0
2 years ago
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What is the solution to the linear equation? = -12 + 3b - 1 =-5 - b​
zalisa [80]

Answer:

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Step-by-step explanation:

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What is the property of combining negative and positive numbers
vodomira [7]

Answer:

The answer will always be negative

Step-by-step explanation:

The rule is if you multiply positive by positive it will equal positive.

If you multiply negative and negative it will equal positive.

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