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Ymorist [56]
3 years ago
12

Pls help I’m failing

Mathematics
1 answer:
GuDViN [60]3 years ago
6 0

Answer:

-7

Step-by-step explanation:

you divide both sides by -2 and 14/-2 is equal to -7

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The volume of a cube is 27 n Superscript 27cubic units. What is the length of one side of the cube? 3 n cubed units 3 n Superscr
NeTakaya

The length of side of cube is 3n^9 units

<em><u>Solution:</u></em>

Given that, volume of cube is 27n^{27} cubic units

<em><u>To find: length of one side of cube</u></em>

<em><u>The volume of a cube is given as:</u></em>

v = a^3

Where, "a" is the length of side of cube

<em><u>Substituting the given value of volume we get,</u></em>

27n^{27} = a^3 ------ eqn 1

We know that,

27 = 3 \times 3 \times 3 = 3^3

<em><u>Substitute the above in eqn 1</u></em>

3^3 n^{27} = a^3

Now again substitute for 27 = 3 x 9

3^3n^{3.9} = a^3

Take 3 as common power

(3n^9)^3 = a^3

<em><u>By taking cube roots on both side, </u></em>

3n^9 = a\\\\a = 3n^9

Thus length of side of cube is 3n^9 units

8 0
3 years ago
Read 2 more answers
Can someone please help me I really need help help me thank you
harkovskaia [24]

Answer:

<h2><em><u>A to C = 25 </u></em></h2><h2><em><u>A to B = 13 </u></em></h2><h2><em><u>C to B = 37 </u></em></h2><h2><em><u></u></em></h2>

Step-by-Step Explanation:

<em><u>Perimeter</u></em> = 75

<em><u>Sides:</u></em>

2x + 3

3x + 4

2x - 9

<h2 /><h2><em><u>1. Equal the sides added together to the perimeter</u></em></h2>

75 = 2x + 3 + 3x + 4 + 2x - 9

<h2><em><u>2. Simplify Like terms</u></em></h2>

2x + 3 + 3x + 4 + 2x - 9  = 7x - 2

<h2><em><u>3. Place the equation back together</u></em></h2>

75 = 7x - 2

<h2><em><u>4. Isolate the variables and numbers</u></em></h2>

75 = 7x - 2

+2        +2

77 = 7x

<h2><em><u>5. Simplify the equation</u></em></h2>

77 = 7x

/7     /7

<h2><em><u>11 = x </u></em></h2>

<h2><em><u>6. Substitute the value of x into the side lengths.</u></em></h2>

2x + 3 = 2(11) + 3 = 22 + 3 = <em><u>25</u></em>

3x + 4 = 3(11) + 4 = 33 + 4 = <em><u>37</u></em>

2x - 9 = 2(11) - 9 = 22 - 9 = <em><u>13</u></em>

5 0
3 years ago
7-4x+2(5x+8). If x=-2
Rashid [163]
<span>7-4x+2(5x+8)
plug x=-2 7
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7+8+2(-10+8)
7+8+2(-2)
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Which is an irrational number
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Answer:

An irrational number is any number than cannot be written in the form p/q, where q is 0 Ex. pi, non-perfect squares

Step-by-step explanation:

In this case D. isn't rational but is irrational

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Can anyone explain this to me-
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What is the figure?.......
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