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Viktor [21]
3 years ago
8

5 − 2x + 2 = 12 work below hurry!!

Mathematics
2 answers:
IrinaVladis [17]3 years ago
4 0
5-2 is 3. Subtract three from both sides. 2x=8. Divide by 2. X=4
Kipish [7]3 years ago
4 0

Step-by-step explanation:

5-2x+2=12 given

-2x+7=12 combine like terms

-2x=5 subtraction property

X=-2.5 or 5/2 ANSWER

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3x2 = 81<br> b. (x - 1)(x + 1)-9 = 5x<br> C. X - 9x + 10 = 32<br> d. 6x(x - 9) = 29
irakobra [83]

Answer:

a. 3x^2 = 81

  x^2 = 27

x =  3\sqrt{3} or -3\sqrt{3}

Step-by-step explanation:

6 0
4 years ago
PLEASE HELP ME
kvasek [131]

Answer:

28

Step-by-step explanation:

The binomial coefficient is calculated as:

nCx=\frac{n!}{x!(n-x)!}

It means that there are nCx ways to select x elements from a group of n elements.

So, If the researcher wants to determine the probability that 6 out of the next 8 individuals in his community are in favor of the president, we can replace n by 8 and x by 6 and calculated the binomial coefficient as:

8C6=\frac{8!}{6!(8-6)!}=28

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