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2 years ago

PLEASE ANSWER THIS ALSO!!!

Mathematics

1 answer:

Oxana [17]2 years ago

6 0

Answer:

Options (A), (C) and (E)

Step-by-step explanation:

Given equation is,

-3x + 7 = -5 + x

-3x + 7 - 7 = -5 + x - 7

-3x = -5 + x - 7 Option (C)

-3x = x - 12

-3x - x = -12

-4x = -12 Option (A)

4x = 12 Option (E)

$\frac{4x}{4}=\frac{12}{4}$

x = 3

Therefore, Options (A), (C) and (E) are the correct options.

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Consider the equation below.

Korvikt [17]

Answer:

Equation in square form:

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Extreme value:

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Step-by-step explanation:

We are given

$y=3x^2+30x+71$

we can complete square

$y=3(x^2+10x)+71$

we can use formula

$a^2+2ab+b^2=(a+b)^2$

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now, we can add and subtract 5^2

$y=3(x^2+2\times x\times 5+5^2-5^2)+71$

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So, we get equation as

$y=3(x+5)^2-4$

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we know that this parabola

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so, we can compare it with

$y=a(x-h)^2+k$

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now, we can compare and find h and k

$y=3(x+5)^2-4$

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$(h,k)=(-5,-4)$

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3 years ago

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PLEASE ANSWER THIS ALSO!!!​

PLEASE ANSWER THIS ALSO!!!