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lazerlemon500
16.11.2020 •
Mathematics
Which of the following statements is INCORRECT?
A. FE = 58
B. DE = 58
C. x = 8
D. DF = 40
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Ответ:
An isosceles triangle has two equal opposites sides
The correct statements are
A. FE = 58
A. FE = 58C. x = 8
A. FE = 58C. x = 8D. DF = 40
incorrect statement is
B. DE = 58
Given:
Side DE = 40
Side FE = 6x + 10
Side DF = 8x - 24
Recall,
DF = DE
8x - 24 = 40
8x = 40 + 24
8x = 64
x = 64 / 8
x = 8
Therefore,
Side FE = 6x + 10
= 6(8) + 10
= 48 + 10
= 58
Side DF = 8x - 24
= 8(8) - 24
= 64 - 24
= 40
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Ответ:
Given:
In figure, ΔDEF has two equal angles ∠E and ∠F.
To find:
The incorrect statement from the given options.
Solution:
In triangle DEF,
Divide both sides by 8.
Now,
Therefore, x=8, FE=58, DE =40 and DF = 40.
Hence, the incorrect statement is in option B. So, option B is correct.
Ответ:
Which expression represents the correct form for the quotient and remainder, written as partial fractions, of StartFraction 8 x cubed minus 2 x squared minus 67 x minus 24 Over 2 x squared minus x minus 21 EndFraction?