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never [62]
4 years ago
9

Kali left school and traveled toward her friend’s house at an average speed of 40

Mathematics
1 answer:
ioda4 years ago
3 0
Matt needs to travel 3 hours. 
If 40km=1 hour
   400km=? But there are two distances
200/40*1=5 hours
Therefore Kali needs to travel 5 hours to be 200 km away from the house.
If 50km=1 hour
200km=?
200/50*1hr=4hrs Therefore Matt needs to travel 4hrs to be 200 km away from the house. But Kali traveled 1hr earlier than Matt. 4hrs-1hr=3hrs
Therefore Matt has to travel for 3 hours to be 400km away from Kali.
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Ilia_Sergeevich [38]
Y would equal -17! Good luck!
4 0
3 years ago
Read 2 more answers
What is the inverse of this function? f(x)=x−7
viva [34]

Answer:

<h3> f^−1(x) = x + 7</h3>

Step-by-step explanation:

Replace f(x) with y. y = x − 7

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Solve for y.  y = x + 7

Solve for y and replace with f^−1 (x).  f^−1(x) = x + 7

I hope this helps have a great day :)

4 0
2 years ago
Identify the remainder when 4x3 - 4x + 12<br> is divided by x + 2.
telo118 [61]
4(x^4+2x^3-x^2-2x+3)/x+2
7 0
3 years ago
You and three friends are planning a trip. You want to keep the cost below $90 per person. Write and solve an inequality that re
velikii [3]

Answer:   x < 360

Step-by-step explanation:

Let x be the total cost for the trip.

And, Here the total number of person = 4

Therefore, the cost for each person = x/4

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Therefore, x/4 < 90

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8 0
3 years ago
A surveyor holds a laser range finder 3 feet above the ground and determines that the range finder is 92 feet from a building an
Ivahew [28]

Answer:

55.64

Step-by-step explanation:

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We will use the Pythagorean theorem:

x^2 = 106^2 - 92^2

= 11,236 -  8,464

= 2,772

= √2,772

x = 52.64978632

The height of the building:

h = x + 3

= 52.64978632 + 3

= 55.64978632

or

≈ 55.64 feet

8 0
3 years ago
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