2 years ago

Please help quiz do in 50 minutes show work

Mathematics

1 answer:

Andrews [41]2 years ago

8 0

Answer:

$x = 32 \\ < e = 106 \\ < def = 37$

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45% of the 647 students at Royal Oak High attended the football game. How many students did not attend?

Lostsunrise [7]

First multiply
.45*647= 291.15
291.15 is the number of people that attended
subtract 291.15 from 647 and you get 355.85 wait.. but that's not possible so just round it so the answer to your question is 355 people did not attened

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3 years ago

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What fraction of a circle is 80°?

Liono4ka [1.6K]

Answer:

2/9

Step-by-step explanation:

Simplify 80°/360°

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Which of the following tables represents a function?

Y_Kistochka [10]

Answer:

The second one:

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Step-by-step explanation:

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2 years ago

Assume the time required to complete a product is normally distributed with a mean 3.2 hours and standard deviation .4 hours. Ho

Alex787 [66]

Answer: 3.712 hours or more

Step-by-step explanation:

Let X be the random variable that denotes the time required to complete a product.

X is normally distributed.

$X\sim N(\mu=3.2\text{ hours},\ \sigma=0.4\text{ hours} )$

Let x be the times it takes to complete a random unit in order to be in the top 10% (right tail) of the time distribution.

Then, $P(\dfrac{X-\mu}{\sigma}>\dfrac{x-\mu}{\sigma})=0.10$

$P(z>\dfrac{x-3.2}{\sigma})=0.10\ \ \ [z=\dfrac{x-\mu}{\sigma}]$

As, $P(z>1.28)=0.10$ [By z-table]

Then,

$\dfrac{x-3.2}{0.4}=1.28\\\\\Rightarrow\ x=0.4\times1.28+3.2\\\\\Rightarrow\ x=3.712$

So, it will take 3.712 hours or more to complete a random unit in order to be in the top 10% (right tail) of the time distribution.

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3 years ago

Ivy walks from the store to her friend's house. Write the fraction that represent her constant speed, C, if she walks y miles in

dlinn [17]

Answer:

Step-by-step explanation:

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3 years ago

Please help quiz do in 50 minutes show work​

Please help quiz do in 50 minutes show work