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prisoha [69]
3 years ago
11

Please help with this question.

Mathematics
2 answers:
Zolol [24]3 years ago
8 0

Answer:

x = 1 y =23

x = 3 y = 15

x = 5 y = 7

x = 6 y = 3

Step-by-step explanation:

what the x is saying when it says it equals 1, 3, 5, and 6 its basically saying anytime you see an x in the problem hence the y =27 - 4x you replace the x with the number that x equals for example if x = 3 I plug three in every time I see an x in the equation like the equation y = 27 - 4x so it would be y = 27 - 4(3) (parentheses meaning 4 times 3) so it would be now y = 27 - 12 and that would be y = 15 hope this helps :)

djyliett [7]3 years ago
6 0

Answer:

23, 15, 7, 3

Step-by-step explanation:

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sattari [20]
They are traveling at right angles to each other so we can say one is traveling north to south and the other west to east.  Then we can say that there positions, y and x are:

y=150-600t  x=200-800t

By using the Pythagorean Theorem we can find the distance between these two planes as a function of time:

d^2=y^2+x^2, using y and x from above

d^2=(150-600t)^2+(200-800t)^2

d^2=22500-180000t+360000t^2+40000-320000t+640000t^2

d^2=1000000t^2-500000t+62500

d=√(1000000t^2-500000t+6250)

So the rate of change is the derivative of d

dd/dt=(1/2)(2000000t-500000)/√(1000000t^2-500000t+6250)

dd/dt=(1000000t-250000)/√(1000000t^2-500000t+6250)

So the rate depends upon t and is not a constant, so for the instantaneous rate you would plug in a specific value of t...

...

To find how much time the controller has to change the airplanes flight path, we only need to solve for when d=0, or even d^2=0...

1000000t^2-500000t+62500=0

6250(16t^2-8t+1)=0

6250(16^2-4t-4t+1)=0

6250(4t(4t-1)-1(4t-1))=0

6250(4t-1)(4t-1)=0

6250(4t-1)^2=0

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4t=1

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Well technically, the controller has t<1/4 because at t=1/4 impact will occur :)


7 0
3 years ago
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larisa [96]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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Reika [66]

Answer:

409 is what I got.

Step-by-step explanation:

361 cm, as the square's area

and 48 as the area for the triangle.

Are you sure those are the answer choices because I'm getting 409.

8 0
3 years ago
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DiKsa [7]

<u>Answer:</u>

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<u>Step-by-step explanation:</u>

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Y = 60% * 40

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p = 60%/100 = 0.6

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Step-by-step explanation:

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2 years ago
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