What is the solution to 2x-8=5x+4

Mathematics

1 answer:

Brrunno [24]4 years ago

5 0

Answer:

negative 4

Step-by-step explanation:

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The line below are parallel. If the green line has a slope of -1/2, what is the slope of the red line?

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The line below are parallel so they have same slopes

If the green line has a slope of -1/2, the slope of the red line is also - 1/2

Answer

-1/2

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X² - 8x - 33=0<br> complete the square

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<h2>Answer:</h2><h2></h2><h2> $\boxed{x_{1}=-3} \\ \\ \boxed{x_{2}=11}$ </h2>

<h2>Explanation:</h2>

Step 1. Write $x^2 - 8x - 33=0$ in the form $x^2+2ax+a^2=0$

$2a=-8\quad :\quad a=-4$

Step 2. Add and subtract $(-4)^2$ to the left side of the equation

$x^2-8x-33+\left(-4\right)^2-\left(-4\right)^2=0 \\ \\ \\ But: \\ \\ x^2+2ax+a^2=\left(x+a\right)^2 \\ \\ x^2-8x+\left(-4\right)^2=\left(x-4\right)^2$

Step 3. Complete square

$\left(x-4\right)^2-33-\left(-4\right)^2=0 \\ \\ \left(x-4\right)^2-49=0 \\ \\ (x-4)=\pm \sqrt{49} \\ \\ x-4=\pm 7 \\ \\ \boxed{x_{1}=-3} \\ \\ \boxed{x_{2}=11}$

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3 years ago

Please do this one first!! its calling YOUR name!! its easy a cake

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I think the range is 18

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I know what your learning, and I'm learning it too, it's just you are being taught a different way so there for I cannot help with this question. so sorry..

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Dahasolnce [82]

Answer:

Step-by-step explanation:

Choice A:

$(4x^2y)^2=(4x^2y)(4x^2y)=(4 \cdot 4)(x^2 \cdot x^2)(y \cdot y)=(16)(x^{2+2})(y^{1+1})=16x^{4}y^{2}$