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Oksi-84 [34.3K]
2 years ago
6

HELP HELP !!!! PLEASE I NEED HELP WITH THIS PROBLEM !!!

Mathematics
2 answers:
Brilliant_brown [7]2 years ago
8 0
Thats gonna be graph A
Vesnalui [34]2 years ago
3 0
This one is best done by elimination:

We need to start 4 meters away, so B is clearly wrong. 

We first move towards Mr. Wilson (i.e. distance is decreasing) so A is wrong.

Our speed is faster on the way back, so the two sloped section must have differing slopes, so D is wrong.
(D also doesn't start at 4, it's wrong for two reasons.)

Only C is left.

We can check each part to make sure. First we start at 4m, then move away, then stay still (zero slope) for three seconds, then move back faster (higher slope). All parts check out ok. 
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A private jet flies the same distance in 8 hours that a commercial jet flies in 7 hours. If the speed of the commercial jet was
mamaluj [8]

Solving a system of equations, we can see that:

  • Speed of the private jet: 168 mi/h
  • Speed of the commercial jet: 192mi/h

<h3>How to find the speeds of each jet?</h3>

Let's define the variables:

  • P = speed of the private jet.
  • C = speed of the commercial jet.

With the given information, we can write:

P*8h = D

C*7h = D

C = 2*P - 144mi/h

So we have a system of 3 equations, where D is the distance in the problem.

With the first and second equations we can write:

P*8h = D = C*7h

Isolating P, we get:

P = C*(7/8)

Now we can replace that in the last equation:

C = 2*P - 144mi/h

C = 2*C*(7/8) - 144mi/h

And now we can solve that for C.

C - 2*(7/8)*C = - 144mi/h

C*(1 - 14/8) = -144mi/h

C*(8/8 - 14/8) = - 144mi/h

C*(6/8) = 144mi/h

C = (8/6)*144mi/h = 192mi/h

Now that we know the speed of the commercial jet, we can find the speed of the private jet.

P = C*(7/8) = 192mi/h*(7/8) = 168 mi/h

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

6 0
2 years ago
Select the correct answer from the drop-down menu.
LenKa [72]

Answer:

D

Step-by-step explanation:

Got 100%

7 0
2 years ago
Can someone please help me
yarga [219]

Answer:

A) <X

Step-by-step explanation:

X - it’s opposite the longest side

7 0
2 years ago
Maggie and her sister bought for their mother that gift of $54.75. maggie contributed $26 to the gift. write an addition equatio
natita [175]

Answer:

54.75 = 26 + x

Step-by-step explanation:

You can solve for x by subtracting 26 from both sides of the equation.

3 0
2 years ago
Find a ratio for the tangent of 32
kotegsom [21]

Answer:tan c

Step-by-step explanation:

5 0
2 years ago
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