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2 years ago

Help please, i will give brainless to who helps me out

Mathematics

2 answers:

yawa3891 [41]2 years ago

7 0

9. x = 30

10. x = 2

11. x = 4

12. x = 2

13. x = -1

Nitella [24]2 years ago

6 0

9. Answer:

10. Answer:

11. Answer:

12. Answer:

13. Answer:

-1

Tip:

Use photomath, its an app

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2-x=-3(x+4)+6 please help

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Answer:

2-x=-3x-12+6

2-x=-3x-6

8=-3x+x

8=-2x

x=-4

hope it's clear

mark me as brainliest

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3 years ago

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3 years ago

PLEASE, I REALLY NEED YOUR HELP!!!

Brrunno [24]

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d + q + p= ¢

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you add all the variables

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2 years ago

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Some one pls help me will give Brainly

Zepler [3.9K]

Answer:

100 miles

Step-by-step explanation:

We need to read the graph to determine the answer.

The input is 10 hours

Using the x, go up until you hit the red line and read the y value

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1 year 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:

The probability that the second ball is red is 71%

Step-by-step explanation:

Probabilities

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%

7 0

3 years ago