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UkoKoshka [18]
3 years ago
5

Carolina is painting a large pink rectangle on her bedroom wall using chalkboard paint. The rectangle is going to be 1.8 meters

high and have an area of 4.5 meters square. What is the length of the rectangle?
Mathematics
1 answer:
dmitriy555 [2]3 years ago
6 0

Answer:

2.5

Step-by-step explanation:

Usually when you try and find the area you would multiply but you don't have one of the numbers to multiply, so what is the oppisite of multiplication? Divison. You would divide the area by the highth. so it would be 4.5 divided by 1.8. 4.5 divided by 1.8 equals 2.5. And to make sure your answer is correct you would multiply 1.8 times 2.5 wich does equal 4.5. The highth is 1.8, the Length is 2.5, and the are is 4.5

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julian walked a distance of 2 meters. keira walked a distance of 300 centimeters, which distance is longer?
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If y varies directly as x and y-21 when x<br> is 7, find x when y = -5.
klasskru [66]

Step-by-step explanation:

Since, y varies directly as x:

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Given the acceleration, initial velocity, and initial position of a body moving along a coordinate line at time t, find the body
nika2105 [10]

Answer:

The  position at time t  is  s(t) = 8t^2 -  14t   -8

Step-by-step explanation:

From the question we are told that

   The acceleration is  a =  16

   The velocity at t = 0  is  v(0) =  -14

    The  position at time t =  0  is s(0) =  -8

Generally acceleration is mathematically represented as

     a(t) =  \frac{d v}{dt }

=>   \frac{dv}{dt}  =  16

=>   dv  =  16 dt

integrating both sides we have    

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=>  v(t)  =  16 t  + c

Now at t = 0  

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=>  c =  -14

So

   v(t)  =  16 t  -14

Generally the position of the body is mathematically represented as

     s(t) =  \int\limits v(t)dt

So

    s(t) =  \int\limits 16t -  14  dt

So  

    s(t) = 16 \frac{t^2}{2} -  14t  + C

Now  at t =  0

     s(0) = 16 \frac{0^2}{2} -  14(0)  + C =  -8

=>    C =  -8

So

   s(t) = 8t^2 -  14t   -8

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