The bedroom and office in the diagrams below are similar rectangles. The walls on the left sides in the diagram are proportional
, and the walls on the top sides in the diagram are proportional. How long is the missing wall of the office (shown in red below)?
1 answer:
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9514 1404 393
Answer:
(c) y = 1.87x^2 -5.16x +10.54
Step-by-step explanation:
The attached graphing calculator output shows the best choice is the third one.
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<em>Additional comment</em>
The best fit is offered by a function of degree about 3.7. Even a cubic offers much better fit than this quadratic.
Looking at the question we can see that it says:
We should know what these symbols mean:
stands for something less than the other, for example:
We can say that 2 is less than 5 so in a symbolic form it can be written as,
Similarly,
stands for something greater than the other, for example:
We can say that 7 is greater than 5, in a symbolic form it can be written as,
So here, means that, 42153 is greater than 35214.