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OverLord2011 [107]
3 years ago
5

Solve the following equations:a) 4(x - 4) = 8b) 5x + 1 / 2 = 3x​

Mathematics
2 answers:
sukhopar [10]3 years ago
7 0

Answer:

6

Step-by-step explanation:

4x-16=8

4x=8+16

4x=24

x=24/4

x=6

Serga [27]3 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

(a)

4(x - 4) = 8 ( divide both sides by 4 )

x - 4 = 2 ( add 4 to both sides )

x = 6

(b)

5x + \frac{1}{2} = 3x ( multiply through by 2 to clear the fraction )

10x + 1 = 6x ( subtract 6x from both sides )

4x + 1 = 0 ( subtract 1 from both sides )

4x = - 1 ( divide both sides by 4 )

x = - \frac{1}{4}

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4 years ago
A triangle has side lengths of (7x-4)(7x−4) centimeters, (x+3)(x+3) centimeters, and (3y+2)(3y+2) centimeters. Which expression
Papessa [141]

Answer:

<u>This assumes that the question was meant to read:</u>

"A triangle has side lengths of (7x−4) centimeters, (x+3) centimeters, and (<u>3x+2</u>) centimeters."  <u>And not </u>"A triangle has side lengths of (7x-4)(7x−4) centimeters, (x+3)(x+3) centimeters, and (3y+2)(3y+2) centimeters."

If the revision is correct, the perimeter is 11x + 1 cm

=============================================

<u>If the question was correctly written, then answer is:</u>

50x^2 - 50x + 9y^2  + 12 y  + 29

===============

Step-by-step explanation:

  (7x-4) cm

+ (x+3)  cm

<u>+ (3x+2) cm</u>

11x + 1 cm

If the question was correctly written as is, then:

(7x-4)(7x−4) = 49x^2 - 56x + 16

+(x+3)(x+3)    =     + x^2   + 6x   + 9

+(3y+2)(3y+2) = <u> +9y^2  + 12 y  + 4</u>

                         50x^2 - 50x + 9y^2  + 12 y  + 29 cm

                       

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3 years ago
What are the zeros of the function
aleksklad [387]

Answer:

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Description

DescriptionIn mathematics, a zero of a real-, complex-, or generally vector-valued function, is a member of the domain of such that vanishes at; that is, the function attains the value of 0 at, or equivalently, is the solution to the equation. A "zero" of a function is thus an input value that produces an output of

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