2 years ago

I have a big test coming up and i nedd help with this question please :)

Mathematics

1 answer:

svetoff [14.1K]2 years ago

5 0

Answer:

the answer is 7/10

Step-by-step explanation:

You might be interested in

What is sum of two mixed numbers of 5.815+6.021

Julli [10]

5.815+6.021= 11.836

good luck!

3 0

3 years ago

If a factor of a quadratic function is (25+4), then the matching zero is:

cluponka [151]

Step-by-step explanation:

I uploaded the answer to the file hosting:

7 0

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.

3 0

3 years ago

How to answer this question

o-na [289]

I don’t know tbh cause I don’t know what that is

4 0

3 years ago

Read 2 more answers

What is the greatest common factor of 48 and 168

snow_lady [41]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers