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wolverine [178]
3 years ago
6

I don’t know this answer help

Mathematics
2 answers:
Archy [21]3 years ago
3 0

Answer:

2n - 2

Step-by-step explanation:

rewrite without parentheses, pretend there is a 1 between the minus sign and the open parentheses that has to be distributed:

3n - 1(2 + n)

3n - (1)(2) + (-1)(n)

3n - 2 - n

combine 3n and -n to get 2n

2n - 2

vazorg [7]3 years ago
3 0

Answer:

2n - 2

Step-by-step explanation:

When there is a - in front of an expression in parentheses, change the sign of each term in the expression:

3n - 2 - n

Combine like terms:

3n - n - 2 \\ 2n - 2

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Answer:

Step-by-step explanation:

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4 0
3 years ago
Solve for x.<br> 4x - 4 &lt;8<br> AND 9x + 5 &gt; 23
snow_tiger [21]

Answer:

2 < x < 3

Step-by-step explanation:

4x - 4 < 8    AND    9x + 5 > 23

4x < 12  AND   9x > 18

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5 0
3 years ago
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Find the solution set of the inequality \qquad52- 3x &lt; -14.52−3x&lt;−14.
Anarel [89]

Answer:

Step-by-step explanation:

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3 years ago
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I need help on this 2 problems please help​
Digiron [165]

Answer:

3. 294 m²

4. 185,856 mm²

Step-by-step explanation:

To find the surface area of any figure, you can simply find the sum of the areas of all the sides.  In question 3, the figure is a triangular prism that has two triangular bases and three rectangular sides.  The measurements for the triangles are b = 9m and h = 6m.  The formula for the area of a triangle is base times height divided by 2, or 9 x 6 = 54/2 = 27 m². However, since there are two triangular bases, the area for both is 54 m².  The measurements for the other three rectangles are given:

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6 0
3 years ago
What are the coordinates of the midpoint of segment AB with the endpoint A(-3,4) and (5,6)
gayaneshka [121]

Answer:

(1,5)

Step-by-step explanation:

You use the midpoint formula to solve this problem

The midpoint formula:

To solve for x: (x1+x2)÷2

To solve for y: (y1+y2)÷2

5 0
3 years ago
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