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Finger [1]
2 years ago
7

A frog is sitting on the ground when he is scared by a big dog. His movement is modeled by the equation

Mathematics
1 answer:
Anvisha [2.4K]2 years ago
3 0
I’m not sure but goodluck!!!
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A train travels train travels 288 kilometre at a uniform speed. If the speed had been 4 kilometre per hour more it would have ta
kiruha [24]

Answer:

Let the speed of the train be x km/h.

Case 1:

Distance = 288 km

Speed = x km/h

Time = Distance/Speed

= 288/x h

Case 2:

Distance = 288 km

Speed = (x+4) km/h

Time = 288/x + 4 h

Since 288/x > 288/x + 4

288/x - 288/x+4 = 1

288[1/x - 1/x+4 ] = 1

[ x + 4 - x / x(x + 4) ] = 1/288

[4 / x^2 + 4x ] = 1/288

x^2 + 4x = 1152

x^2 + 4x - 1152 = 0

x^2 + 36x - 32x - 1152 = 0

x(x + 36) - 32(x + 36) = 0

(x + 36)(x - 32) = 0

x + 36 = 0 , x - 32 = 0

x = -36 , x = 32

x = -36 , rejected since speed cannot be negative.

Therefore , speed of the train = 32 km/h

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3 years ago
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What does the spaces in between the numbers mean
6 0
2 years ago
If f(x)=-x+8 and g(x)=x^4,what is (g•f)(2)?
wariber [46]
Answer:

It can be written as <span>f<span>(−8)</span></span> or <span>f<span>(3<span>(−2)</span>−2)</span></span>

Explanation:

You would substitute <span>−2</span> for the x in <span>3x−2</span> and then insert <span>3<span>(−2)</span>−2</span> for the g. You would end up with <span>f<span>(3<span>(−2)</span>−2)</span></span>, which can also be simplified to <span>f<span>(−8<span>)</span></span></span>

5 0
3 years ago
Friend/GF applications, put them down below!
gizmo_the_mogwai [7]

Answer:

Yes it is constant.

Step-by-step explanation:

A constant rate means something "stays" the same.

I couldn't live without music. I like art. I love the outdoors, but don't go out much. I really love plants and science. Also, I don't like judging someone for their opinions, or first appearances. I love helping people and get all A's.

5 0
3 years ago
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Someone help !!!<br> ill do anything i promise
prisoha [69]

Answer:

1/600, 6/100, 1/1400

Step-by-step explanation:

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