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Amiraneli [1.4K]
3 years ago
10

What is the square root of 841

Mathematics
1 answer:
mars1129 [50]3 years ago
5 0
29 ...................................................................................................
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Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p: n = 195,
Troyanec [42]

Answer:

c. 0.778 < p < 0.883.

Step-by-step explanation:

The formula for confidence interval for proportion =

p ± z score × √p(1 - p)/n

p = x/n

n = 195, x = 162

z score for 95% confidence Interval = 1.96

p = 162/195

p = 0.8307692308

p ≈ approximately equal to = 0.8308

0.8308 ± 1.96 × √0.8308 × (1 - 0.8308)/195

0.8308 ± 1.96 ×√0.8308 × 0.1692/195

0.8308 ± 1.96 × √0.0007208788

0.8308 ± 1.96 × 0.0268491862

0.8308 ± 0.052624405

Confidence Interval

= 0.8308 - 0.052624405

= 0.778175595

Approximately = 0.778

= 0.8308 + 0.052624405

= 0.883424405

Approximately = p

0.883

Therefore, the confidence interval for this proportion = (0.778, 0.883) or option c. 0.778 < p < 0.883

6 0
3 years ago
Find the value of x. The angle measures of a right triangle are <br>x°<br>8x°​
lianna [129]

Answer:

x equals 10

Step-by-step explanation:

All triangles have 180 degrees

The bottom left angle is a right angle and is therefore 90°

That leaves us with x+8x=90°

9x=90°

x=10°

8 0
3 years ago
Read 2 more answers
3. The diameter of the large bird bath is 6 feet. The CGJ girls plan to put bird perches around the outside edge of the bath suc
laila [671]
First we need to determine the circumference of the bath.

Circumference = Diameter X pi 

6(pi) = 18.84 feet

and the girls want to put perches that are at least 3 feet between each other so you can just divide the circumference by 3 

18.84 / 3 = 6.28 so 6

If you don't understand the concept then think of it like this, if you have in total 18.84 feet and you want to place something down every 3 feet then start subtracting 3 from your total till you can't add anymore perches. 

18 - 3 = 15
15 - 3 = 12
12 - 3 = 9
9 - 3 = 6
6 - 3 = 3
3 - 3 = 0

We subtracted 3, SIX times so we added 6 perches
5 0
3 years ago
Some one plz help its algebra 1
Dahasolnce [82]
The correct answer is B
6 0
3 years ago
Read 2 more answers
Please help on #17 thank you!!
Ivahew [28]

Answer:

its B

Step-by-step explanation:

you do 40 over 100  then x over 225

40              x

-----    X    ------               then you cross multiply then divied 40x225/100=90

100          225

8 0
3 years ago
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