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PilotLPTM [1.2K]
3 years ago
7

Someone please help.

Mathematics
2 answers:
PtichkaEL [24]3 years ago
6 0

Answer:

a

Step-by-step explanation:

ozzi3 years ago
3 0

Answer:

Step-by-step explanation:what is foot-pound

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Catherine owns $22.50 on her lunch account balance. She pays $15 toward her balance. What is the status of her account balance n
Alex777 [14]

Answer:

22.50

- 15.00

_______

7.50

Step-by-step explanation:

She still owes $7.50

6 0
3 years ago
Read 2 more answers
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
What is the degree of 6х5 – 4х2 + 2х3 – 3+х?
DiKsa [7]
5 because the highest power= degree of the function
5 0
3 years ago
Hey.. I’m really stuck on this page of homework, can anyone help?
eduard

Answer:

Easy!

Step-by-step explanation:

All you have to do is..       Percentage = (number you want to find the percentage for ÷ total) × 100. Move the decimal point two places to the right to convert from a decimal to a percentage, and two places to the left to convert from a percentage to a decimal.

Hope this helps :)

3 0
2 years ago
Use the facts that the negation of a ∀ statement is a ∃ statement and that the negation of an if-then statement is an and statem
marin [14]

Answer:

it`s not true that for every person, if the person is happy, the person has a large income/there are people that are happy and doesn't have large incomes

Step-by-step explanation:

let be x the group of people in the world

let be I(X)=x has a large income

let be H(x)=x is happy

Having a large income is not a necessary condition for a person to be happy.

¬∀x, H(x)-->I(x)

<em>it`s not true that for every person, if the person is happy, the person has a large income</em>

∃x /  H(x)^¬I(x)

<em>there are people that are happy and doesn't have large incomes</em>

7 0
3 years ago
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