Ask question

Ask question

All categories

2 years ago

13

How to find the y intercept and slope? Please help me

1 answer:

Sergeu [11.5K]2 years ago

3 0

Answer: y intercept is -1/2, slope is 1/2.
Explanation: To find the slope, we can take the rise over the run. We have two points given, (-5,-3) and (5,2). Our y value changes by 5 over a length of 10, meaning our slope is 5/10, which can be simplified to 1/2. By following the graph we can find where the y value is when x hits zero, and from tracing along we can see the y intercept is -1/2.

You might be interested in

Please help me on this will give you brainliest

NNADVOKAT [17]

Answer:

Step-by-step explanation:

1

-

8 exponent 9

7 0

2 years ago

An urn contains 5 white and 10 black balls. A fair die is rolled and that number of balls is randomly chosen from the urn. What

galina1969 [7]

Answer:

Part A:

The probability that all of the balls selected are white:

$P(A)=\frac{1}{6}(\frac{1}{3}+\frac{2}{21}+\frac{2}{91}+\frac{1}{273}+\frac{1}{3003}+0)\\ P(A)=\frac{5}{66}=0.075757576$

Part B:

The conditional probability that the die landed on 3 if all the balls selected are white:

$P(D_3|A)=\frac{\frac{2}{91}*\frac{1}{6}}{\frac{5}{66} } \\P(D_3|A)=\frac{22}{455}=0.0483516$

Step-by-step explanation:

A is the event all balls are white.

D_i is the dice outcome.

Sine the die is fair:

$P(D_i)=\frac{1}{6}$ for i∈{1,2,3,4,5,6}

In case of 10 black and 5 white balls:

$P(A|D_1)=\frac{5_{C}_1}{15_{C}_1} =\frac{5}{15}=\frac{1}{3}$

$P(A|D_2)=\frac{5_{C}_2}{15_{C}_2} =\frac{10}{105}=\frac{2}{21}$

$P(A|D_3)=\frac{5_{C}_3}{15_{C}_3} =\frac{10}{455}=\frac{2}{91}$

$P(A|D_4)=\frac{5_{C}_4}{15_{C}_4} =\frac{5}{1365}=\frac{1}{273}$

$P(A|D_5)=\frac{5_{C}_5}{15_{C}_5} =\frac{1}{3003}=\frac{1}{3003}$

$P(A|D_6)=\frac{5_{C}_6}{15_{C}_6} =0$

Part A:

The probability that all of the balls selected are white:

$P(A)=\sum^6_{i=1} P(A|D_i)P(D_i)$

$P(A)=\frac{1}{6}(\frac{1}{3}+\frac{2}{21}+\frac{2}{91}+\frac{1}{273}+\frac{1}{3003}+0)\\ P(A)=\frac{5}{66}=0.075757576$

Part B:

The conditional probability that the die landed on 3 if all the balls selected are white:

We have to find $P(D_3|A)$

The data required is calculated above:

$P(D_3|A)=\frac{P(A|D_3)P(D_3)}{P(A)}\\ P(D_3|A)=\frac{\frac{2}{91}*\frac{1}{6}}{\frac{5}{66} } \\P(D_3|A)=\frac{22}{455}=0.0483516$

7 0

3 years ago

The price of a geometrical box was Rs 400 last year. It has increased by 12% this year. What is the price now?

mestny [16]

Answer:

Rs 448

Step-by-step explanation:

400 × 1.12 = 448

this a 12 % increase

6 0

3 years ago

What number is halfway between 28 and 82

densk [106]

Answer:

the answer is 55

Step-by-step explanation:

(28+82)/2

6 0

3 years ago

Read 2 more answers

I WILL GIVE BRAINLIEST, PLZ HELP!<br><br> given g(x) = - x-4, solve for x when g(x) =-4

yaroslaw [1]

Answer:

g(-4) = 0

Step-by-step explanation:

g(-4) = -(-4)-4

g(-4) = 0

5 0

3 years ago