All categories

2 years ago

Can someone please help me with the last question?

Mathematics

1 answer:

Naya [18.7K]2 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

Plz Answer This Mathematics Question??? NEED HELP ASAP

vazorg [7]

Answer:

5.78 * 10^8

Step-by-step explanation:

8.5 * 6.8 = 57.8

5+2=7

In scientific notation the number has to be greater than or equal to 1 and less than ten.

5 0

2 years ago

Read 2 more answers

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

The estimated product of 20.7 and 9.18 after rounding both factors to the nearest whole number is

gogolik [260]

189 because 20.7 rounds to 21 and 9.18 rounds to 9
21 * 9 = 189

7 0

3 years ago

Read 2 more answers

Help plz need answer asap

AlladinOne [14]

Answer:

The image that is correct is the one with yellow starting at positive 4 and green at negative 4. The solution is anything less than positive 4.

3 0

3 years ago

Hey fellas, giving brainliest and a lot of points to who gets this correct

Ainat [17]

Answer:

$7\frac{1}{12}$ or $\frac{85}{12}$

Step-by-step explanation:

total boxes = Jills boxes + Mikes boxes

total boxes = $5\frac{1}{3} +1\frac{3}{4}$

= $\frac{16}{3} + \frac{7}{4}$

= $\frac{64+21}{12}$

= $\frac{85}{12}$

= $7\frac{1}{12}$

3 0

2 years ago