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zmey [24]
3 years ago
14

The size of a certain cell is 2.5 x 10^-9 m. Another cell is 1.5 x 10^3 times larger. How large is the larger cell in scientific

notation?
A.) 4 x 10^-27m
B.) 4 x 10^-12m
C.) 3.75 x 10^6m
D. 3.75 x 10^-6m

I honestly have no idea what to do.
Mathematics
2 answers:
Sveta_85 [38]3 years ago
6 0
The answer is d. I just took the quick check.
Tema [17]3 years ago
4 0

1) C. -15x^4y

2) B. -18/m^5n

3) C. 768x^11

4) A. 2.535x10^10

5) D. 3.75x10^-6m


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Express the confidence interval 0.555 less than 0.777 in the form Modifying above p with caret plus or minus Upper E.
Elina [12.6K]

Complete Question

Express the confidence interval 0.555 less than p less than  0.777 in the form Modifying above p with caret plus or minus Upper E.

Answer:

The modified representation is \r p \pm  E  = 0.666 \pm  0.111

Step-by-step explanation:

From the question we are told that

    The  confidence interval interval is  0.555 <  p <  0.777

Now looking at the values that make up  the up confidence interval we see that this is a symmetric  confidence interval(This because the interval covers 95%  of the area under the normal curve which mean that the probability of a value falling outside the interval is 0.05 which is divided into two , the first half on the left -tail and the second half on the right tail  as shown on the figure in the first uploaded image(reference - Yale University ) ) which means

     Now  since the confidence interval is  symmetric , we can obtain the sample proportion as follows

             \r p  =  \frac{0.555 + 0.777}{2}

            \r p  =0.666

Generally the margin of error is mathematically represented as

            E  =  \frac{1}{2}  *  K

Where  K is the length of the confidence interval which iis mathematically represented as

           K  =  0.777 -0.555

         K  = 0.222

Hence  

          ME  =  \frac{1}{2}  *  0.222

           ME  =  0.111

So the confidence interval can now be represented as

        \r p \pm  E  = 0.666 \pm  0.111

     

3 0
3 years ago
Would someone Please answer this question please will be thanked and also will pick brainly!! (please be honest)
lapo4ka [179]
The answer to this question is 360ft^2
8 0
3 years ago
Lisa is cooking muffins. The recipe calls 7 cups of sugar. She has already put in 2 cups. How many more cups does she need to pu
jok3333 [9.3K]

Answer:

She needs to use 5 more cups of sugar for the muffins

Step-by-step explanation:

7-2=5

P.S. May I get brainly?

3 0
3 years ago
Number 2 please help
Sveta_85 [38]

Answer:

you just have to check the first and the third box

Step-by-step explanation:

put each into slop intercept form

y+6=-5(x-2) is the same as y=-5x+4

y-2=-5(x+6) is the same as y=-5x-28

y=-5x+4

y=-5x-28

all of them have a slope of -5, but you need to plug in (2,-6) to see which on is true

5 0
3 years ago
What is the equation of a line, in point-slope form, that passes through (-4, -1) and has a slope of (5, 7)
bearhunter [10]

It is y+1=0.9(x+4) because the formula is y - y1=m(x + x1) you only need one point and the slope. If you have two points, you need to find the slope by using the slope formula slope=y2-y1/x2-x1. Filling it in it would look like slope=7-(-1)/5-(-4). The double negatives cancel each other out and it turns to addition signs leaving us with slope=7+1/5+4 so the slope is 8/9 or 0.9. Now you can fill out the point-slope formula y+1=0.9(x+4)

8 0
3 years ago
Read 2 more answers
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