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Papessa [141]
3 years ago
6

What is x divided by 7=9?

Mathematics
2 answers:
Mumz [18]3 years ago
5 0
All you do is multiply 7 x 9 = 63 so x = 63. I hope this helps! :)
Arturiano [62]3 years ago
3 0
Multiply 7 by 9 and you will get 63 which is x.
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Sergio [31]

Answer:

6.667 ft/s

Step-by-step explanation:

Given

Height of street light = 15ft

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Let x represents the distance between the man and the pole, and Let y represents the distance between the tip of the man's shadow to the pole.

This forms a similar triangle (see attachment below).

From similar triangles, we have

(y - x)/6 = y/15 ----- Solve equation

15(y - x) = 6 * y

15y - 15x = 6y ---- Collect Like Terms

15y - 6y = 15x

9y = 15x --- divide through by 9

y = 15x/9

y = 5x/3 ---- differentiate with respect to time, t

dy/dt = 5/3 dx/dt

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while dy/dt represents rate of movement of his shadow tips

dy/dt = 5/3 * 4

dy/dt = 20/3 = 6.667 ft/s

4 0
3 years ago
Read 2 more answers
Is -x+4y=-2 a direct variation?
In-s [12.5K]

Answer:

No

Step-by-step explanation:

Direct variation: two variables, one variable is a constant multiple of another variable

y = k x  .... k constant

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4y = x - 2

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6 0
3 years ago
If f(3)=2x^3 -2 , what is the value of f(2)
iris [78.8K]

I'm not sure about this but will give it a try:

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So, f(2) = 2x² - 2

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3 years ago
Multiplying or dividing two related quantities by the same number is called; what?
tamaranim1 [39]
I believe this is called scaling. This is the word that I am associating with your definition, as well as what many internet sources say. I am not 100% sure, but I think this is correct. Hope this helps.
6 0
3 years ago
What is the value of the expression 30n when n=2
iris [78.8K]
Hey there!
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We plug in n.
30(2) =
60
Hope this helps!
8 0
3 years ago
Read 2 more answers
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