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4 years ago

8x=-4(x+3) I would really appreciate some help

Mathematics

2 answers:

Elenna [48]4 years ago

5 0

Answer: x=−1

Explanation:

Step 1. You need to simplify both sides of the equation.

8x=−4(x+3)

8x=(−4)(x)+(−4)(3) (Remember to distribute)

8x=−4x+−12

8x=−4x−12

Step 2. Then add 4x to both sides.

8x+4x=−4x−12+4x

12x=−12

Step 3. Lastly, divide both sides of the equation by 12.

12x/12 = -12/12

x=−1

Final Answer: x=−1

Hope I could help! :)

olganol [36]4 years ago

4 0

Answer:

x = -1

Step-by-step explanation:

8x = - 4(x + 3)

8x = -4x - 12

+4x +4x

12x = -12

12 12

x = -1

Remember, a negative times a positive equals a negative
Remember, a negative divided by a positive equals a negative

Hope this helps you!!! :)

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3 years ago

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3 years ago

Question Find the missing side lengths. Leave answer in simplest radical form.

Slav-nsk [51]

Answer:

A) y = $\frac{11\sqrt{3} }{2}$ , x = 11

Step-by-step explanation:

We can use the 60 degree angle to help us solve this.

Remember: tan(angle) = opposite/adjacent

Using this formula, we get that

tan (60 degrees) = y / (11/2)

This is because y is the side opposite to the 60 degree angle and 11/2 is the side adjacent to the 60 degree angle.

Simplifying this expression, we get that

$\sqrt{3}$ = y/(11/2)

Multiplying both sides by 11/2, we get

$\frac{11\sqrt{3} }{2}$ = y

We can now use the pythagorean theorem to help us solve for x

Remember: a² + b² = c²

Since x is the hypotenuse, it is the c value. Therefore, we get:

(11/2)² + ( $\frac{11\sqrt{3} }{2}$ )² = x²

Simplifying this, we get

$\frac{121}{4}$ + $\frac{121 * 3}{4}$ = x²

Simplifying this some more, we get

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I hope this helps!

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3 years ago

(15 Points)

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3 years ago

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