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3 years ago

6

30 Points ill mark brainiest, please help.

2 answers:

meriva3 years ago

6 0

Answer:

a = 1, b = -1, c = -2

Or,

a = -1, b = 1, c = 2

Step-by-step explanation:

–2 = –x + x² – 4

x² - x - 4 + 2 = 0

x² - x - 2 = 0

a = 1, b = -1, c = -2

Or,

–2 = –x + x² – 4

-x² + x - 2 + 4 = 0

-x² + x + 2 = 0

a = -1, b = 1, c = 2

melomori [17]3 years ago

5 0

Answer:

Got it!

The given Quadratic Equation is:

-2= -x+x^2-4

i.e, x^2-x-2=0

now we have to compare it to the form ax^2+bx+c=0

by comparing we got a=1,b= -1 and c= -2

in other way around ,when coefficient of x^2 taken as negative then the sign of a,b&c will change ,

as a= -1, b=1 and c=2

✌️:)

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Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

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(b) Find the probability that x lies between 6 and 13. 

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So $c = 9, d = 20$

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44% probability that x lies between 9 and 20.

(d) Find the probability that x lies between 11 and 18.

So $c = 11, d = 18$

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