3 years ago

3.

Mathematics

2 answers:

Mazyrski [523]3 years ago

8 0

Answer: A

Explanation:

lana66690 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

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The total answer is $14.16 because the tip would be $2.16 so add it with 12 and you get $14.16.

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Qual o resultado da subtração dos dois polinômios abaixo? (2x2 + 4x) (–2x2 + x – 6)

Len [333]

Answer:

-4x^4-6x^3-8x^2-24x

Step-by-step explanation:

$\left(2x^2+4x\right)\left(-2x^2+x-6\right)\\$

distribuir parênteses

$=2x^2\left(-2x^2\right)+2x^2x+2x^2\left(-6\right)+4x\left(-2x^2\right)+4xx+4x\left(-6\right)$

Aplicar regras de menos mais ; $+\left(-a\right)=-a$

$=-2\times\:2x^2x^2+2x^2x-2\times\:6x^2-4\times\:2x^2x+4xx-4\times\:6x$

simplificar

$-2\times\:2x^2x^2+2x^2x-2\times\:6x^2-4\times\:2x^2x+4xx-4\times\:6x:\\\quad -4x^4-6x^3-8x^2-24x$

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3 years ago

Find the slope of the line perpendicular to AB. A(3, 5) and B(3, -8).

SashulF [63]

Answer:

m = 0

Step-by-step explanation:

AB has a slope of y2 - y1 / x2 - x1 so -8-5/3-3 so -13/0 = undefined so it is a vertical line, so any line that is horizontal will be perpendicular to it, so horizontal lines have a zero slope

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icang [17]

Answer:

Step-by-step explanation:

(4 * 2) - 4 = x

8 - 4 = x

x = 4

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3 years ago

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