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4 years ago

7

If the number of roaches triples every day, and there are 10 to start with, write an equation to represent this situation. How m

any roaches will there be after 15 days?

1 answer:

victus00 [196]4 years ago

8 0

Answer:

430,467,210

Step-by-step explanation:

ur answer maybe idk

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A researcher wishes to estimate, with 9090% confidence, the proportion of adults who have high-speed Internet access. Her es

Sunny_sXe [5.5K]

Answer: a) Required minimum sample size= 219

b) Required minimum sample size= 271

Step-by-step explanation:

As per given , we have

Margin of error : E= 5% =0.05

Critical z-value for 90% confidence interval : $z_{\alpha/2}=1.645$

a) Prior estimate of true proportion: p=28%=0.28

Formula to find the sample size :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.28(1-0.28)(\dfrac{1.645}{0.05})^2\\\\=218.213856\approx219$

Required minimum sample size= 219

b) If no estimate of true proportion is given , then we assume p= 0.5

Formula to find the sample size :-

$n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.645}{0.05})^2\\\\=270.6025\approx271$

Required minimum sample size= 271

8 0

3 years ago

Need the answer in 20 min !! Ty

kirill115 [55]

Answer:

15

19

14

Step-by-step explanation:

6 0

3 years ago

I just need to know how to do this. pls help me

Vlada [557]

Vertically opposite angles are equal
With this information we can form an equation

2x+14=60
Subtract 14 from both sides
2x=46
Divide both sides by 2
X=23

x = 23 degrees

5 0

4 years ago

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What is the perimeter of the figure

Fofino [41]

Answer:

Step-by-step explanation:

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3 years ago

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What is the prime factorization of 96?<br> 0 25.32<br> 25.3<br> 02.2.2.2.3<br> 8.12

Nina [5.8K]

Answer:

8.12

Step-by-step explanation:

we first multiply 8 by 12 and we will get 96 as our answer

7 0

3 years ago