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4 years ago

Convert to vertex form: y=2x^2-8x+1

Mathematics

1 answer:

Bad White [126]4 years ago

3 0

I’ll try and help u in 6 years

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If DE is congruent to KR and O is the midpoint of ER and DK, which of the following congruence postulates can be used

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3 years ago

After reading 80\%80% of her e-mails in her inbox, Danette still has MM unread e-mails.

NARA [144]

Answer: The correct options are.....

A) $\frac{M}{1-0.8}$ and

B) $5M$

Step-by-step explanation:

Suppose, the number of e-mails Danette had in her inbox before she started reading was $X$ .

Percentage of read emails is 80%, so the number of read emails $= (\frac{80}{100}*X)=0.8X$

Thus, the number of unread emails $= X-0.8X=X(1-0.8)$ , which is given as $M$ .

So, the equation will be........

$X(1-0.8)=M\\ \\ \Rightarrow X=\frac{M}{1-0.8} (Answer: 1) \\ \\ \Rightarrow X=\frac{M}{0.2}\\ \\ \Rightarrow X=(\frac{1}{0.2})M=5M (Answer: 2)$

Thus, the expressions which could represent the number of e-mails Danette had in her inbox before she started reading are: $\frac{M}{1-0.8}$ or $5M$

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4 years ago

I need your help guys! :)

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4 years ago

Is the square root of (10)^2 irrational

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No. It's rational. The solutions are +10 and -10.

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3 years ago

Read 2 more answers

HELP PLEASE, IF YOU GET IT RIGHT YOU WILL RECEIVE BRAINIEST !!!!

ddd [48]

Answer:

ok it is very hardest app

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