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cashkidd2200
26.09.2019 •
Mathematics
The width of the mirror is 4/9 it's lenght the area of the mirror is 576 sq in. what are the dimension s of the mirror
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Ответ:
W = 4/9L
You just need to plug in the numbers into the area formula and solve
576 = L × 4/9L
576 = 4/9L² (combining the two variables since they are the same)
(9/4) 576 = 4/9L² (9/4) (isolating L²)
1296 = L²
√1296 = √L² (isolating L by removing the square. √ is the opposite of ²)
36 = L
Since we know 36 is L now we need to find W (using the formula we made)
W = 4/9L
W = 4/9(36)
W=16
The dimensions of the mirror are 36 in. x 16 in.
Ответ:
or 4/9(x^2)=576 first divide both sides by 4/9
x^2=16 solve for x
x=4
Ответ: