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2 years ago

8

Brainliest will be given. Please help with the problem shown in the picture above thank you so much appreciate it <3

2 answers:

s344n2d4d5 [400]2 years ago

7 0

Answer:

40.8 < x > 55.2 (if the number is between these two numbers, it is a solution)

Step-by-step explanation:

Hope this helped :)

anyanavicka [17]2 years ago

4 0

Answer:

Possible: 46, 41 and 55.

Not possible: 58, 56, and 39

Step-by-step explanation:

First, you need to find the range of possible estimates, you can find this by multiplying 0.15 by 48 which equals 7.2, this means that the estimates have to be less than 7.2 pounds away from 48.

The lowest possible estimate is 48 - 7.2 which equals 40.8 and the highest possible estimate is 48 + 7.2 which equals 55.2.

If it is in between 40.8 and 55.2, then it's a possible estimate, if not, not possible.

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In a sample of 1000 randomly selected consumers who had opportunities to send in a rebate claim form after purchasing a product,

Vadim26 [7]

Answer: 0.2872

Step-by-step explanation:

Given : In a sample of 1000 randomly selected consumers who had opportunities to send in a rebate claim form after purchasing a product, 260 of these people said they never did so.

i.e. n= 1000 and x= 260

⇒ Sample proportion : $\hat{p}=\dfrac{260}{1000}=0.26$

z-value for 95% confidence interval : $z_c=1.960$

Now, an upper confidence bound at the 95% confidence level for the true proportion of such consumers who never apply for a rebate. :-

$\hat{p}+ z_c\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$=0.26+ (1.96)\sqrt{\dfrac{0.26(1-0.26)}{1000}}$

$=0.26+ (1.96)(0.01387)=0.26+0.0271852=0.2871852\approx0.2872$

∴ An upper confidence bound at the 95% confidence level for the true proportion of such consumers who never apply for a rebate : 0.2872

7 0

3 years ago

Help! Question is attached.

irakobra [83]

Look at the coefficient of x (the slope).

Is -2 positive or negative?

Since -2 is negative, The slope is negative.

3 0

3 years ago

What did you guys get for all of these?<br> I’ll give you 30 points If you’re able to answer all.

alex41 [277]

Answer:

can u zoom in and take picture

Step-by-step explanation:

8 0

3 years ago

Write an equation in slope intercept form for the line that passes through (-1, -2) and (3, 4)

LenaWriter [7]

Answer:

The slope-intercept form of the line equation is:

$y=\:\frac{3}{2}x\:-\frac{1}{2}$

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

m is the slope

b is the y-intercept

Given the points

(-1, -2)

(3, 4)

Determining the slope between (-1, -2) and (3, 4)

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-1,\:-2\right),\:\left(x_2,\:y_2\right)=\left(3,\:4\right)$

$m=\frac{4-\left(-2\right)}{3-\left(-1\right)}$

$m=\frac{3}{2}$

Thus, the slope of the line is:

m = 3/2

substituting m = 3/2 and the point (3, 4) in the slope-intercept form of the line equation

y = mx+b

$4=\frac{3}{2}\left(3\right)+b$

switch sides

$\frac{3}{2}\left(3\right)+b=4$

$\frac{9}{2}+b=4$

subtract 9/2 from both sides

$\frac{9}{2}+b-\frac{9}{2}=4-\frac{9}{2}$

$b=-\frac{1}{2}$

now substituting m = 3/2 and b = -1/2 in the slope-intercept form of the line equation

$y = mx+b$

$y=\:\frac{3}{2}x\:+\:\left(-\frac{1}{2}\right)$

$y=\:\frac{3}{2}x\:-\frac{1}{2}$

Therefore, the slope-intercept form of the line equation is:

$y=\:\frac{3}{2}x\:-\frac{1}{2}$

8 0

2 years ago

Which describes an organ system?

pshichka [43]

D cause of biology hope this is right

4 0

2 years ago