I need help with This question please

I need help with this. I'm stuck. PLEASE SAVE ME

vagabundo [1.1K]

Answer: Its the one.

Step-by-step explanation:

Your going to subtract 2 from each sides making the equation, -5 is less than or equal to 25, then your gonna divide -5 by 25, which will give you -5, and then the sign will switch to greater than or equal to because you divided by a negative number. The dot on the number line will be solid because the sign is greater than or equal to. You're welcome :)

7 0

3 years ago

If a survey of a movie shows that 50% of all people who like the movie, enjoyed the official movie soundtrack too. If a total of

Murljashka [212]

Answer:

For the first question the sample size is n= 3850

$ME= z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

$\hat p \pm ME$

And replacing we got:

$0.5- 0.016 = 0.484$

$0.5+ 0.016 = 0.516$

We are confident at 95% that the true proportion of all people who like the movie is between 0.484 and 0.516.

Step-by-step explanation:

We have the following info given:

$\hat p = 0.5$ represent the estimated proportion of all people who like the movie

$n = 3850$ represent the sample size selected

For the first question the sample size is n= 3850

For the second part they gives to us the margin of error:

$ME = 0.016$

We know that the confidence interval for a population proportion $p$ of interest is given by:

$\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

And the margin of error is given by:

$ME= z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

So then the confidence interval can be found with this formula:

$\hat p \pm ME$

And replacing we got:

$0.5- 0.016 = 0.484$

$0.5+ 0.016 = 0.516$

We are confident at 95% that the true proportion of all people who like the movie is between 0.484 and 0.516.

5 0

3 years ago

Which of the following is the cubic parent function?

Alla [95]

Generally, y = x³ is considered to be the parent function of all cubics. That choice corresponds to ...
B. y = x^3

6 0

3 years ago

ANSWER ASAP The area of a rectangle depends on its length and width. For the area to remain constant, the length varies inversel

Free_Kalibri [48]

Area of the rectangle is equal to length times width

In function notation, the Area of the rectangle function is a function in variables l (length) and w(width) as follows:

A(l, w)= l*w

for A=475 we have,

l*w=475

$l= \frac{475}{w}$ or $w= \frac{475}{l}$ , each are equivalent, and each represent the inverse variation.

Answer: $l= \frac{475}{w}$ , $w= \frac{475}{l}$

4 0

3 years ago

What's the answer for this Patrick and his friends Jerome and Marina collect football cards. Altogether they have 3,000 cards. P

AVprozaik [17]

Marina collected 1000 cards

6 0

3 years ago