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3 years ago

Simplify 3(x - 6) - 4(x + 3). A)-x - 30 B)-x - 9 C)-x - 6 D)-x - 30

Mathematics

2 answers:

snow_tiger [21]3 years ago

7 0

Answer:d)-x-40

Step-by-step explanation:

morpeh [17]3 years ago

3 0

Answer:

-x-30

Step-by-step explanation:

first you need to distribute:

3(x)+3(-6) -4(x)+ (-4)(3)

Then you multiply:

3x+(-18)-4x+(-7)

then you combine like terms:

3x-4x= -1x 

-18+(-7)= -25

simplified:

-1x-30

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To the nearest hundredth, what is the value of x? 36.08 41.51 47.81 72.88

Crazy boy [7]

Answer:

Step-by-step explanation:

Using the law of sines, we can make a proportion.

But first, we'll need to solve for the unknown angle.

We add up the two known angles and subtract that by 180.

90 + 41 = 131

180 - 131 = 49

So the unknown angles is 49.

Then, we can use the law of sines.

Make the equation.

sin(90)/55 = sin(49)/x

Simplify this using a calculator and you get around 41.51 or option B.

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2 years ago

Which choice is equivalent to the expression below ^-216

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Answer:

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General Formulas and Concepts:

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Imaginary Numbers: √-1 = i

Step-by-step explanation:

Step 1: Define expression

√-216

Step 2: Simplify

Factor: √-1 · √216
Simplify: i · 6√6
Multiply: 6i√6

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