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4 years ago

Simplify each equation. Show steps. 1. 2(x + 3) + 4x 2. 4 + 2(x – 2) – 4 3. 6(2x – 4) – 3x 4. -6x – 4 + 5x + 7

Mathematics

2 answers:

Lelu [443]4 years ago

7 0

Answer:

Step-by-step explanation:

1. 2x + 6 + 4x = 6x + 6

2. 4 + 2x - 4 - 4 = 2x - 4

3. 12x - 24 - 3x = 9x - 24

4. -x + 3

Margarita [4]4 years ago

4 0

1) 9x-24
2)2x+4
3) 9x-24
4)-x+3

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nata0808 [166]

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4 years ago

The lengths of two sides of a right triangle are 12 inches and 15 inches. What is the difference between the two possible length

Mademuasel [1]

Answer:

10.2 inches

Step-by-step explanation:

we know that

In this problem we have two cases

First case

The given lengths are two legs of the right triangle

$a=12\ in, b=15\ in$

Applying the Pythagoras Theorem

Find the length of the hypotenuse

$c^{2}=a^{2} +b^{2}$

substitute

$c^{2}=12^{2} +15^{2}$

$c^{2}=369$

$c=19.2\ in$

Second case

The given lengths are one leg and the hypotenuse

$a=12\ in, c=15\ in$

Applying the Pythagoras Theorem

Find the length of the other leg

$b^{2}=c^{2} - a^{2}$

substitute

$b^{2}=15^{2} - 12^{2}$

$b^{2}=81$

$b=9\ in$

Find the difference between the two possible lengths of the third side of the triangle

$19.2-9=10.2\ in$

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4 years ago

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What function is graphed below? y = 2x y = x + 3 y = 2x + 3 y = 2x + 2

vagabundo [1.1K]

Answer:

y=2x+3

Step-by-step explanation:

The coefficient has to be 2, since the graph has a slope of 2, and the constant has to be 3 because the y- intercept is 3.

y=2x+3

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4 years ago

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HELP FAST 34 POINTS AND BRAINLIEST!!

mezya [45]

Answer:

Red: 1/2

White: 1/6

Blue: 1/3

Step-by-step explanation:

You take and find the total number of marbles, which is 18. You then take the number of each different color and make that number your numerator, and 18 your denominator and reduce.

Red: 9/18 reduces to 1/2

White: 3/18 reduces to 1/6

Blue: 6/18 reduces to 1/3

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2 years ago