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2 years ago

PLSSS HELP IF YOU KNOW THISS

Mathematics

2 answers:

Ivan2 years ago

7 0

Answer:

1 yard is the equivalent of 3 feet.

Step-by-step explanation:

Please note that 1 foot is 12 inches.

Hope this helps you :)

nikitadnepr [17]2 years ago

5 0

Answer:

3 feet.

Step-by-step explanation:

1 yard is equal to 3 feet

To find how many feet a certain amount of yards are, multiply it by 3.

So, 1*3=3

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What is the value of x?

horsena [70]

Answer:

Step-by-step explanation:

all interior angles add up to 180 so the third angle is53+45=98 so 180-98=82

X=180-82whiCh is 98

8 0

3 years ago

3/4•3/4???? I can’t do it in my head and I don’t know how to make a decimal into a fraction

Monica [59]

Answer:

0.5625

Step-by-step explanation:

3/4 as a decimal is 0.75

0.75×0.75=0.5625

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3 years ago

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Jared has $18 to spend. He buys lunch for $3.87 and a tie for $5.95. Jared buys a magazine with the remaining money. How much do

AleksandrR [38]

3.87 + 5.95 = 9.82
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3 years ago

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Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

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3 years ago

What is the volume, in cubic meters, of a cylinder with a height of 8 meters and a base radius of 9 meters, to the nearest tenth

sammy [17]

Volume of a cylinder: $\pi r^{2} h$

Plug in the numbers.

$\pi 9^{2} 8$ = <span>2035.8
</span>
The cylinder's volume is 2035.8 m³.

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3 years ago