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2 years ago

HELP HELP HELP PLEASE:)) Find the slope and y-intercept

Mathematics

1 answer:

inna [77]2 years ago

5 0

Answer:

Answer choice A

Step-by-step explanation:

Use the slope intercept form y = mx + b to find the slope m and y-intercept b.

Slope = 4/3

y intercept = (0,-3)

Therefore the answer choice is A, 4/3 ; -3

Please mark brainliest if possible ;)

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Stress at work: In a poll conducted by the General Social Survey, 80% of respondents said that their jobs were sometimes or alwa

Svet_ta [14]

Answer:

a) P=0.019

b) P=0.263

c) P=0.794

Step-by-step explanation:

We assume that the poll gives the population's proportion of respondents said that their jobs were sometimes or always stressful (p=0.8).

Then, a sample of size n=190 is taken.

The sample mean is:

$\mu=np=190*0.8=152$

The sample standard deviation is:

$\sigma=\sqrt{np(1-p)}=\sqrt{190*0.8*0.2}=\sqrt{30.4}=5.514$

The probability that 140 or fewer workers find their jobs stressful is:

$z=(X-\mu)/\sigma=(140.5-152)/5.514=-11.5/5.514=-2.08 \\\\P(X\leq140)=P(X$

Note: a correction for continuity is applied.

The probability that more than 155 workers find their jobs stressful is

$z=(X-\mu)/\sigma=(155.5-152)/5.514=3.5/5.514= 0.635 \\\\P(X>155)=P(X>155.5)=P(z>0.635)=0.263$

The probability that the number of workers who find their jobs stressful is between 145 and 158 inclusive is:

$z_1=(X_1-\mu)/\sigma=(158.5-152)/5.514=6.5/5.514= 1.179\\\\ z_2=(X_2-\mu)/\sigma=(144.5-152)/5.514=-7.5/5.514= -1.360 \\\\ P(145\leq X\leq 158)=P(144.5< X< 158.5)\\\\P(145\leq X\leq 158)=P(X$

5 0

2 years ago

Read 2 more answers

What is the explicit rule for the sequence? 15.5, 13, 10.5, 8, 5.5, 3, ...

Igoryamba

It is b i hope this helps

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2 years ago

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Connor wants to solve the equation 4" = 26. How could he use graphs to solve this

Llana [10]

Answer:

graph the curve that models the expression is the first on, I don’t know the rest

Step-by-step explanation:

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2 years ago

Harriet works at the Mint, where new coins are made. Old and fake coins are also destroyed there. Harriet has 10 bags of $1 coin

Aloiza [94]

Answer:

3 times

Step-by-step explanation:

She would have to weigh the fake coins and another bag of real coins to spot a difference, and then she would need to check another bag to see which was correct. Maybe thats right.

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2 years ago

What is the surface area?<br> 4 cm<br> 7 cm<br> 3 cm<br> square centimeters

vladimir1956 [14]

Ok so i would do 4x7x3 which equals 84
brainest:)

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2 years ago