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morpeh [17]
3 years ago
11

Find the dimensions of the rectangle

Mathematics
1 answer:
hoa [83]3 years ago
7 0
(a) The sum of length and width is half the perimeter, so the breadth in terms of length (x) in cm will be
.. breadth = 34 -x


(b) Then the expression for the area (in cm^2) is
.. area = length*breadth
.. 253 = (x)(34 -x)
.. x^2 -34x +253 = 0 . . . . . subtract the right side, eliminate parentheses
.. (x -11)(x -23) = 0 . . . . . . . factor
.. x = 11 or 23

The dimensions of the rectangle are 11 cm by 23 cm.
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The value in dollars, v(x), of a certain truck after x years is represented by the equation v
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Answer:

The worth of truck is $2,201 more after 2 years than after 3 years.

Step-by-step explanation:

Given: V(x)=32500(0.92)^x

The value of truck is depreciate per year using above formula.

We need to find how much more worth of truck after 2 years than 3 years.

First we find the worth of truck after 2 years, put x=2 into formula

V(2)=32500(0.92)^2

V(2)=27508

The worth of truck after 2 years would be $27,508

Now we find the worth of truck after 3 years, put x=3 into formula

V(3)=32500(0.92)^3

V(3)=25307.36

The worth of truck after 2 years would be $25,307.36

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Hence, The worth of truck is $2,201 more after 2 years than after 3 years.

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Answer:

Step-by-step explanation:

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A chemist is using 347 milliliters of a solution of acid and water. If 16.3 percent of the solution is acid, how many millileter
Katyanochek1 [597]
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