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egoroff_w [7]
2 years ago
7

If i'm in 9th grade right now what years was my 6th grade year ?

Mathematics
1 answer:
creativ13 [48]2 years ago
5 0

Answer:

2017-2018

Step-by-step explanation:

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Find the area of the figure and type your result in the empty box.
pentagon [3]

Answer:

iyge4dutgn

Step-by-step explanation:

n8uj98ju6g

8 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
(a)/(2a)+(4)/(3a^(2)) ayuda por favor
Irina-Kira [14]

Answer:

3a^2+8/6a^2

Step-by-step explanation:

there ya go hope this helps

5 0
2 years ago
The temperature was 38 degrees Fahrenheit before a cold front came through. Ten hours later, the temperature was -12 degrees Fah
padilas [110]

Answer:

-5 degrees per hour

Step-by-step explanation:

In 10 hours, the temperature dropped -50 degrees (38 + 12, and make it negative because the temperature went down, not up).

So divide -50 by 10

-50/10 = -5

7 0
2 years ago
What is 4/5 divided by to make it a decimal
brilliants [131]
The decimal representation for 4/5 would be,
0.8
Hope it helped. It's all I could do.
7 0
3 years ago
Read 2 more answers
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