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Oliga [24]
3 years ago
15

A train travels at an average speed of 35m/s. workout the time it takes to travel 225km?

Mathematics
1 answer:
Leokris [45]3 years ago
7 0

Answer:

Step-by-step explanation:

d = rt

225km = 225,000m

225,000 = 35*t

t = 6,428.57 seconds

or 107.14 minutes

or 1 hour and 47 minutes

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In order for an airline to cancel a flight, there needs to be over 6 inches of snow on the ground. Suppose we want to do a test
Lunna [17]

Answer:

Step-by-step explanation:

From the given question.

We can write the null hypothesis & the alternative hypothesis as:

Null hypothesis:

\mathbf{H_o: \mu \leq 6}

Alternative hypothesis:

\mathbf{H_{a}:\mu >6}

From above, let's think about the type I error we could make and the type II error we could make.

<u>Type I error:</u>

The type I error at the null hypothesis showcases that the snow level is at 6 inches or below 6 inches, but we falsely concluded that the snow level is high above sea level.

<u>Type II error:</u>

Here, the snow level is literally above 6 inches, hence, we failed to conclude that the snow level is above 6 inches.

Thus, the consequences of the above analysis showcase that type II error has higher severe consequences because it may result in a situation that may endanger the passengers' safety.

5 0
3 years ago
Please help :’).......
Ymorist [56]
The answer is one over thirty two to the seventh power
6 0
2 years ago
Read 2 more answers
Would -x - 3y = -1 convert into y = -1/3 x - 1/3​
vfiekz [6]

Answer:

Yes, -x - 3y = -1 is the same as y = -1/3x - 1/3

Step-by-step explanation:

-x - 3y = -1

Add x to both sides which gives you

-3y = x-1

Divide both sides by -3 which gives you

y = -1/3x-1/3

Reminder whatever you do to one side you have to do to the other side!

Hope this helps!

3 0
3 years ago
Which of the following is equal to the rational expression when x*-2 or 3?<br> X^2 +5x+6<br> X^2-X-6
trasher [3.6K]

Answer:

Step-by-step explanation:

x=-2, x=3

---------------

x^2+5x+6=(-2)^2+5(-2)+6=(-2)(-2)-10+6=4-10+6=-6+6=0

x^2+5x+6=3^2+5(3)+6=9+15+6=24+6=30

---------------------------------------------------------------

x^2-x-6=(-2)^2-(-2)-6=4+2-6=6-6=0

x^2-x-6=3^2-3-6=9-3-6=6-6=0

-----------------------------------------------------

7 0
3 years ago
Each interior angle of a regular hexagon is 4x+24°. What is x?
Oduvanchick [21]
Each interior angle of a regular hexagon is 120°.
.. 4x +24° = 120°
.. 4x = 96° . . . . . . . subtract 24°
.. x = 24° . . . . . . . . divide by 4
7 0
3 years ago
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