All categories

3 years ago

I need some serous help immediately

Mathematics

1 answer:

stepladder [879]3 years ago

7 0

I’m assuming you are talking about number four. If you look at the line it provides you, the slope is -.5 and the intercept is zero. So all you have to do is rewrite the equation but subtract four from the right side and it will be parallel.

You might be interested in

What is the probability a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean

Elena-2011 [213]

Answer:

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

Step-by-step explanation:

The following information is missing:

The standard deviation of population is 100.

We are given the following information in the question:

Population mean, μ = 502

Standard Deviation, σ = 100

Sample size, n = 90

Standard error =

$\dfrac{\sigma}{\sqrt{n}} = \dfrac{100}{\sqrt{90}} = 10.54$

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(test score within 10 points)

$P(492 \leq x \leq 512) \\\\= P(\displaystyle\frac{492 - 502}{10.54} \leq z \leq \displaystyle\frac{512-502}{10.54}) \\\\= P(-0.9487 \leq z \leq 0.9487)\\= P(z \leq 0.9487) - P(z < -0.9487)\\= 0.829 -0.171 = 0.658 = 65.8\%$

$P(492 \leq x \leq 512) = 65.8\%$

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

7 0

2 years ago

Please help me with this will give BRAINLIST to best answer

In-s [12.5K]

Answer:

$\frac{3}{b^{0}b^{4} }$

Step-by-step explanation:

Move $b^{-4}$ to the denominator in $\frac{3b^{-4} }{b^{0} }$

using the negative exponent rule $b^{-n} =\frac{1}{b^{n} }$

3 0

2 years ago

Please help will give brainlest<br><br> Question 67x3-34+49x2

tresset_1 [31]

Answer:

265

Step-by-step explanation: Used a Calculator

8 0

2 years ago

Read 2 more answers

Ollie won 2 games for every 5 games that Noelle won. If Noelle won 15 more

Dmitrij [34]

Answer:

Step-by-step explanation:

2:5, 4:10, 6:15

5 0

3 years ago

Please help me out I just really hate math

Schach [20]

If a person gets flat commission of $60 for every $200 of profit then for $1000 profit the commission would be $300. For $1500 the commission would be $450.

5 0

2 years ago