3 years ago

Which of the following expressions are equivalent to 30 - 8x - 6 - 5x?

Mathematics

1 answer:

olganol [36]3 years ago

6 0

I think it's the 2 one I'm 76 percent sure

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Marta_Voda [28]

Answer:

$7\sqrt{3}$

Step-by-step explanation:

Since this is a 30-60-90 triangle, we know that the sides have the following characteristic:

The side opposite to 30 degree angle: n

The side opposite to 60 degree angle: $n\sqrt{3}$

The side opposite to 90 degree angle: 2n

Since we know that 7 is opposite to 30-degree, and x is opposite to 60 degree, than we know that x = $7\sqrt{3}$

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3 years ago

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Fofino [41]

Answer:

Step-by-step explanation:

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Marizza181 [45]

The correct answer is x= -6 let me know if you want to know how I got that or if you needed to know if it is no solution/ infinite/etc..

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3 years ago

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What is the slope of the line that passes through the points (-4,-2) and (-4,-22)? Write your answer in simplest form.

Anuta_ua [19.1K]

Answer:

$20x - 4 = 0$

Step-by-step explanation:

$\frac{y - y1 }{y2 - y1} = \frac{x - x1}{x2 - x1} \\ x1 = - 4 \\ y1 = - 2 \\ x2 = - 4 \\ y2 = - 22$

$x2 = - 4 \\ y2 = - 22$

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3 years ago

Find cos(β) in the triangle.

denis23 [38]

Answer:

$cos \beta = \frac{adjacent}{hypotenus}$

$cos \beta = \frac{8}{17}$

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3 years ago