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Alex787 [66]
2 years ago
14

What is the relation between distance travelled by a train and its speed, when time is constant?

Mathematics
1 answer:
Oliga [24]2 years ago
4 0

Answer:

direct relation between distance travelled by a train and its speed, when time is constant.

Step-by-step explanation:

We know that the speed of an object is the total distance covered divided by total time taken. Mathematically, it is given by :

v=\dfrac{d}{t}

Where

d is distance

t is time taken

It can be seen that relation between the distance and the speed is direction. Hence the correct option is (a) "direct".

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Now we are testing to see whether taking a vitamin supplement each day has significant health benefits. There are no (known) har
ZanzabumX [31]

Answer:

Concluding that people should take vitamin supplement each day when they don't help.            

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

Taking a vitamin supplement each day has significant health benefits and does not have any harmful side effects.

Null hypothesis:

Taking a vitamin supplement each day does not have have significant health benefits.

Alternate hypothesis:

Taking a vitamin supplement each day have have significant health benefits.

Type I error:

  • It the error of rejecting the a true null hypothesis.

So error I for this situation would be concluding that people should take vitamin supplement each day when they don't help.

3 0
2 years ago
Can u help me plz thanks
Mrrafil [7]
1. x = -4 ; f(x) = -(-4) = 4
2. x = -3 ; f(x) = 2(-3) + 1 = -5
3. x = 0 ; f(x) = 2(0) + 1 = 1
4. x = 2 ; f(x) = 2 + 3 = 5
5. x = 5 ; f(x) = 5 + 3 = 8
4 0
3 years ago
A circle has a diameter of 14cm. What's the circumfrence?
vesna_86 [32]
I believe that when finding the radius of a circle you half the diameter, but when finding the circumference of a circle you need to multiply the diameter (14cm) by pi.

So 14xpi= 43.98229715

But it can be simplified/ rounded to 44cm.

Of course I might be incorrect so do please correct me if I am wrong.
7 0
3 years ago
The moon is about 240,000 miles from the earth what is the distance right now as a whole number multiplied by a power of 10
sertanlavr [38]
240,000 = 24 x 10,000 but 10,000 = 10 x 10 x 10 x 10 = 10⁴, then:

240,000 = 24 x 10⁴

4 0
3 years ago
HELP PLEASE NO LINKS OR FILES THEY WILL BE REPORTED
Mariana [72]

Answer:

One of the possible dimensions of the full trailer could be 5 by 12 by 3.

Step-by-step explanation:

Volume = weight times height times length = 12 times 5 times 3 = 180.

3 0
3 years ago
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