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3 years ago

Solve 4 + 2 x 5; the answer is ?

Mathematics

2 answers:

elena-14-01-66 [18.8K]3 years ago

7 0

The answer is 14 because 5 multiplied by 2 is 10+4 is 14

murzikaleks [220]3 years ago

5 0

It is 14
because 2*5=10+4 = 14

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mart [117]

The distance around the circle is called the A. circumference

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2 years ago

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

2 years ago

Which point is exterior to APD

Rainbow [258]

Point E is exterior to APD

5 0

2 years ago

Read 2 more answers

GUYS HELP! IS THIS CORRECT??? ILL MARK YOU BRAINIEST!

SashulF [63]

Answer:12

Step-by-step explanation:

it’s 12 because 4 x 3 = 12

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2 years ago

Read 2 more answers

WILL MARK BRAINLIEST IF ITS RIGHT !!

Furkat [3]

Answer:

Around 0.22

FIRST THOUGH, I FEEL LIKE 90 MIGHT HAVE MEANT TO BEEN 0.9, SO IF SO SUBSTITUTE THE 90 BELOW FOR 0.9!

Step-by-step explanation:

Okay, so first.

Company A will be 50 a day plus 0.4 a mile

Company B will be 30 a day plus 90 per mile

We can write an equation like this:

50 + 0.4m = 30 + 90m

m = miles they are the same

Then we solve for m.

50 + 0.4m = 30 + 90m

- 0.4m - 0.4m

50 = 30 + 89.6m

- 30 - 30

20 = 89.6m

Divide both sides by 89.6

Around 0.22!

5 0

2 years ago