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3 years ago

I WILL GIVE BRAINLIST HELPPP PLSSSS

Mathematics

1 answer:

emmasim [6.3K]3 years ago

4 0

Answer: 220 in^3

Step-by-step explanation:

Area of the rectangle: 20x8 = 160

Area of right triangle: 8x15/2 = 60

Side of right triangle = 8, as the pythagorean triple 8,15,17 states C:

Area of the figure: rectangle + triangle = 160+60 = 220

Hope this helps!

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In order to set rates, an insurance company is trying to estimate the number of sick days that full-time workers at an auto repa

kotegsom [21]

Answer: 31

Step-by-step explanation:

Formula to find the sample size is given by :_

$n=(\dfrac{z^*\cdot \sigma}{E})^2$

, where z*= critical value corresponds to confidence level.

$\sigma$ = population standard deviation.

E= Margin of error.

As per given , we have

$\sigma=2.8$

E=1

We know that critical value corresponding to 95% confidence level = z*=1.96

Then, the required sample size would be :

$n=(\dfrac{(1.96)\cdot (2.8)}{1})^2$

$n=(5.488)^2$

$n=30.118144\approx31$

Hence, the required minimum sample size = 31

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4 years ago

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jok3333 [9.3K]

Answer:

Step-by-step explanation:

Order of operations GERMDAS

Grouping: no grouping

Exponents: 9²=81 so 6÷3+81-4

Radicals: no radicals

Multiplication: no multiplication

Division: 6÷3=2 so 2+81-4

Addition: 2+81=83 so 83-4

Subtraction: 83-4=79

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3 years ago

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Yanka [14]

Answer:

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Step-by-step explanation:

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Bogdan [553]

Answer:

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Step-by-step explanation:

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