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3 years ago

What is the slope intercept ? Please help me !!!

Mathematics

1 answer:

Allushta [10]3 years ago

6 0

I’m pretty sure the answer is m= -6/5 I’m not sure tho

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Explain how to estimate 368+231

alina1380 [7]

Hi there,

368 + 231 = 599

Hope this helps :)

7 0

2 years ago

In a population distribution, a score of x=57 corresponds to z=-0.25 and a score of x=87 corresponds to z=1.25. Find the mean an

Serggg [28]

Here is dependence between scores and x-values:

$Z_i=\dfrac{X_i-\mu}{\sigma},$

where $\mu$ is the mean, $\sigma$ is standard deviation and i changes from 1 to 2.

1. When i=1, $Z_1=-0.25,\ X_1=57,$ then

$-0.25=\dfrac{57-\mu}{\sigma}.$

2. When i=2, $Z_2=1.25,\ X_2=87,$ then

$1.25=\dfrac{87-\mu}{\sigma}.$

Now solve the system of equations:

$\left\{\begin{array}{l}-0.25=\dfrac{57-\mu}{\sigma}\\ \\1.25=\dfrac{87-\mu}{\sigma}.\end{array}\right.$

$\left\{\begin{array}{l}-0.25\sigma=57-\mu\\ \\1.25\sigma=87-\mu.\end{array}\right.$

Subtract first equation from the second:

$1.25\sigma-(-0.25\sigma)=87-57,\\ \\1.5\sigma=30,\\ \\\sigma=20.$

Then

$1.25=\dfrac{87-\mu}{20},\\ \\87-\mu=25,\\ \\\mu=87-25=62.$

Answer: the mean is 62, the standard deviation is 20.

3 0

3 years ago

Read 2 more answers

Nerissa has 5 pink bows 1 blue bow and 4 purple bows in a box. She will randomly choose 1 bow from the box. What is the probabil

Citrus2011 [14]

Answer: The probability is 2/5.

Step-by-step explanation: If there are 5 pink bows, 1 blue bow, and 4 purple bows, there are a total of 10 bows in the box. The probability of choosing a purple one is 4/10 (since there are 4 purple bows). 4/10 simplifies to 2/5.

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2 years ago

You go out to pick blueberries and black berries. You know that to make a black and blue pie, you need to have 5 blueberries for

Svetlanka [38]

Answer:

100 blueberries and 40 blackberries

Step-by-step explanation:

Multiply each by 20 and you have 5 x 20 = 100 and 2 x 20 = 40

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3 years ago

: What does the value of f(3) represent in the given context?

Sergio039 [100]

Answer: D

Step-by-step explanation: on The graph it shows the height of the ball after 3 bounces is 4 feet

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3 years ago