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2 years ago

Uf two integers have the same sign, what is sign of their sum

Mathematics

1 answer:

Viktor [21]2 years ago

8 0

This question don’t make sense

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What expessions are equivalent to 2(25)

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2×25

THE ANSWER TO IT WOULD BE 50

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3 years ago

An urn contains 5 red balls and 2 green balls. Two balls are drawn one after the other. What is the probability that the second

AleksAgata [21]

Answer:

<em>The probability that the second ball is red is 71%</em>

Step-by-step explanation:

<u>Probabilities</u>

We know there are 5 red balls and 2 green balls. Let's analyze what can happen when two balls are drawn in sequence (no reposition).

The first ball can be red (R) or green (G). The probability that it's red is computed by

$\displaystyle P(R)=\frac{5}{7}$

The probability is's green is computed by

$\displaystyle P(G)=\frac{2}{7}$

If we have drawn a red ball, there are only 4 of them out of 6 in the urn, so the probability to draw a second red ball is

$\displaystyle P(RR)=\frac{5}{7}\cdot \frac{4}{6}=\frac{10}{21}$

If we have drawn a green ball, there are still 5 red balls out of 6 in the urn, so the probability to draw a red ball now is

$\displaystyle P(GR)=\frac{2}{7}\cdot \frac{5}{6}=\frac{5}{21}$

The total probability of the second ball being red is

$\displaystyle P(XR)=\frac{10}{21}+\frac{5}{21}=\frac{5}{7}=0.71$

The probability that the second ball is red is 71%

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3 years ago

On any given day, the number of users, u, that access a certain website can be represented by the inequality1125-41530. Which of

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Answer: D

The only answers i found- hope it helps!

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3 years ago

If the slope and a point of a line are given, then the equation of the line can be written in point-slope form. True False

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Step-by-step explanation:

Hgbuf7g

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Uf two integers have the same sign, what is sign of their sum​

Uf two integers have the same sign, what is sign of their sum