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kakasveta [241]
3 years ago
7

If the train that megan is riding covers 80miles in 2hours how fast is the train traveling

Mathematics
1 answer:
Gelneren [198K]3 years ago
7 0
The Train Is Running 40 MPH

How To Show Ur Work: ^^^^^^^

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Find a 95% confidence interval for the mean auditory response time for subjects with a visual response time of 200 ms. The 95% c
Sveta_85 [38]

Answer:

hello your question is incomplete attached below is the complete question

answer : ( 184.019 , 206.219 )

Step-by-step explanation:

The 95% confidence interval for the mean auditory response time for subjects with a visual response time of 200 ms can be calculated using this relationship below

y = Bo + B1 ( 200 )  = 195.118621 , sy =

hence a 95% confidence interval = 195.118621 ± 2.306( 4.813492) i.e.  ( 184.019 , 206.219 )

attached below is the remaining part the solution

6 0
2 years ago
3x+5y=-3 x-5y=-5 show your work
frez [133]
We are given the equations 3x+5y=-3 and x-5y=-5.

Both equations have a 5y  term which allows us to easily solve the system by elimination. To do so we will add the equations together like a simple addition problem by adding the x terms together, the y terms together, and the integer answers together.

3x + 5y = -3
+x - 5y = -5
---------------
4x + 0y = -8

The y terms cancel out since one is positive and one is negative. Now we can solve for x.

4x = -8

\frac{4x}{(4)} = \frac{-8}{(4)}

x = -2

Now plug -2 in for x in one of the original equations to find y.

(-2) - 5y = -5

-5y = -3

y = 3/5

Our answer as an ordered pair is (2, 3/5)
6 0
2 years ago
X²=361/100,<br> please help<br> ​
navik [9.2K]
Answer would be 3.61.
5 0
3 years ago
Read 2 more answers
What is 12- (-8) +7 in integers
Irina-Kira [14]

Answer:

12+8+7=27

Step-by-step explanation:

just normal addition

4 0
1 year ago
A. Y=-1/2x+2<br> B. Y=1/2x+2<br> C. Y=-2x-3<br> D. Y=2x-6
hjlf

Answer:

B: Y=1/2×+2 I think that's it

3 0
2 years ago
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