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3 years ago

Can someone please help me with this

Mathematics

1 answer:

miv72 [106K]3 years ago

8 0

The pic is really faint. Plz make it eazier to see.

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Nick has a box of ornaments that

MakcuM [25]

Answer:

3 blue, 3 green, 3 red, 9 in total

5 0

3 years ago

What is f(3) if f(x) =2x+6

xeze [42]

F(3) = 2(3)+6
f(3)= 6+6
f(3)=12

Hope this helps!

8 0

3 years ago

Read 2 more answers

Through (2,0) slope = -5/3 write the slope intercept of the equation

babunello [35]

For this case we have that the equation of a line of the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cut-off point with the y axis

In this case we have the following data:

$m = - \frac {5} {3}\\(x, y) :( 2,0)$

Then, the equation is of the form:

$y = - \frac {5} {3} x + b$

We find "b" replacing the point:

$0 = - \frac {5} {3} (2) + b\\0 = - \frac {10} {3}\\b = \frac {10} {3}$

Thus, the equation is:

$y = - \frac {5} {3} x + \frac {10} {3}$

Answer:

$y = - \frac {5} {3} x + \frac {10} {3}$

8 0

2 years ago

Read 2 more answers

I need help with two three and one

Mariana [72]

We cant see the lines to be able to answer these

6 0

3 years ago

Suppose that time spent on hold per call with customer service at a large telecom company is normally distributed with a mean µ

lana66690 [7]

Answer:

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8 minutes

Standard Deviation, σ = 2.5 minutes

Sample size, n = 25

We are given that the distribution of time spent is a bell shaped distribution that is a normal distribution.

Formula:

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

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{2.5}{\sqrt{25}} = 0.5$

P(sample mean is between 7.8 and 8.2 minutes)

$P(7.8 \leq x \leq 8.2)\\\\ = P(\displaystyle\frac{7.8 - 8}{0.5} \leq z \leq \displaystyle\frac{8.2-8}{0.5})\\\\ = P(-0.4 \leq z \leq 0.4})\\\\= P(z < 0.4) - P(z < -0.4)\\\\= 0.6554 -0.3446= 0.3108$

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

4 0

3 years ago