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V125BC [204]
3 years ago
7

Kali runs 10 laps around a track each day each lap around the track is 400 meters how may days will it take Kali to run a total

of 12 kilometers
Mathematics
1 answer:
zmey [24]3 years ago
7 0

Answer:

30

Step-by-step explanation:

Convert 12 km to metres

1000 m = 1 km

12 km = 12 × 1000/1

Distance = 12 000 m

Kali takes 1 day for 400 m, so

Time = 12 000 × 1/400

Time = 30 da

It will take Kali 30 da to run 12 km.

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viva [34]

Answer:

b

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
If f(x)=x+7 and g(x)= 1 divided by x-13, what is the domain of (f•g)(x)?
andrew11 [14]
<h2>Hello!</h2>

The answer is:

The domain of the function is all the real numbers except the number 13:

Domain: (-∞,13)∪(13,∞)

<h2>Why?</h2>

This is a composite function problem. To solve it, we need to remember how to composite a function. Composing a function consists of evaluating a function into another function.

Composite function is equal to:

f(g(x))=(f\circ} g)(x)

So, the given functions are:

f(x)=x+7\\\\g(x)=\frac{1}{x-13}

Then, composing the functions, we have:

f(g(x))=\frac{1}{x-13}+7\\

Therefore, we must remember that the domain are all those possible inputs where the function can exists, most of the functions can exists along the real numbers with no rectrictions, however, for this case, there is a restriction that must be applied to the resultant composite function.

If we evaluate "x" equal to 13, the denominator will tend to 0, and create an indetermination since there is no result in the real numbers for a real number divided by 0.

So, the domain of the function is all the real numbers except the number 13:

Domain: (-∞,13)∪(13,∞)

Have a nice day!

5 0
3 years ago
PLSS HELP THE TEACHER IS ASKING FOR MY ANSWERS CUZ I WAS SUPPOSED TO DO IT AND I NEVER WAS PREPARED PLSSS HELP IM NEXT
Goshia [24]
Okay!!! What are the questions?
8 0
2 years ago
9+ 13 + 17 + ...+ 457=
Readme [11.4K]

Answer:

418

Step-by-step explanation: 457-17-13-9=418

To double check: 418 + 17 + 13 + 9 = 457

6 0
3 years ago
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