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Sloan [31]
3 years ago
13

What is the answer to this please help

Mathematics
1 answer:
lora16 [44]3 years ago
6 0

Answer:

A = 140

Step-by-step explanation:

Area of a triangle:

A = 1/2bh

Given:

b = 20

h = 14

Work:

A = 1/2bh

A = 1/2(20)(14)

A = 10(14)

A = 140

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The National Coffee Association reported that of U.S. adults drink coffee daily. A random sample of U.S. adults is selected. Rou
kirill115 [55]

The question is incomplete. The complete question is :

The National Coffee Association reported that 62% of U.S. adults drink coffee daily. A random sample of 225 U.S. adults is selected. Round your answers to at least four decimal places as needed.

Required:

a. Find the mean μ.

b. Find the standard deviation σ.

c. The standard deviation σ.

Solution :

a). Percentage of the US adults who drinks coffee daily = 62%

Therefore, the mean, μ = 0.62

b). We know, p = μ = 0.62

And n = 225

Therefore, the standard deviation is given by :

$\sigma=\sqrt{\frac{p\times (1-p)}{n}}$

 $=\sqrt{\frac{0.62\times (1-0.62)}{225}}$

 $=\sqrt{\frac{0.62\times 0.38}{225}}$

 $=0.0324$

c). Standard deviation, σ = 0.0324

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3 years ago
Do looks matter when is comes to guys​
jenyasd209 [6]

Answer:

this is not academic so ty for points

Step-by-step explanation:

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4 0
3 years ago
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How do you write 53% as a fraction in lowest terms
Vaselesa [24]
Well you would take 53% then put it over 100 so you should get 53/100
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What is the formula for area of a rectangle/square/parallelogram?
adell [148]

Answer:

Rectangle= lw (length times width)

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8 0
2 years ago
Pleaseee help. Oh yeah this has to be 20 characters soooo
valina [46]

It is more than one I think because it becomes -1 over -12 WITHOUT the -power and then add the power and it becomes positive. Make the power positive and it will become negative making it less than 1.

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