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arsen [322]
4 years ago
7

what are the roots of the polynomial equation x3-7x=6x-12? Use a graphing calculator and a system of equations.

Mathematics
2 answers:
kvasek [131]4 years ago
5 0

Answer:

B

Step-by-step explanation:

Masteriza [31]4 years ago
3 0
X3-7x=6x-12
x3-7x-6x+12=0
x3-13x+12=0
(x-1)(x2+x-12)=0
Calculate delta of the second bracket:
delta = 1+4*12=49
sqrt(delta)=sqrt(49)=7
x_1=(-1-7)/2=-4
x_2=(-1+7)/2=3

(x-1)(x+4)(x-3)=0

Answear:
Roots: x=1, x=-4, x=3.
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Step-by-step explanation:

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3 years ago
Please answer this correctly
Over [174]

Answer:

54 9/10

Step-by-step explanation:

The perimeter is the sum of all the sides

13 1/4 + 12 1/5 + 18 1/4 + 11 1/5

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13+12+18+11 = 54

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3 years ago
Read 2 more answers
Irene knows there are 2 cups in 1 pint. She writes the equation c=2p to find the number of cups, c, in any number of pints, p. U
Natasha2012 [34]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as there are no options to select from.

However, a general explanation is as follows.

Given

2\ cups = 1\ pint

Required

Is c = 2p a correct expression?

Let

c = cups

p = pint

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2\ cups = 1\ pint

becomes

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Hence:

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3 years ago
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