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Valentin [98]
3 years ago
7

What is the answer to 1n-2+3n=18

Mathematics
1 answer:
kaheart [24]3 years ago
4 0
That equation equals 4n - 2 = 18
add 2 both sides
4n = 20
divide by 4
n = 5
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6 times a number is 27 less than the square of that number. Find the positive solution.
Verdich [7]

Let x = your number.

6x = x^2 - 27. Subtract 6x from each side.

0 = x^2 - 6x - 27. Factor

0 = (x-9) (x+3). Set each term equal to zero

(x+3) = 0. Subtract 3 from each side.

x = -3. This is the negative solution.

(x-9) = 0. Add 9 to each side.

x = 9. This is the positive solution.

6 0
3 years ago
The area of a rectangle is 3,878 square centimeters. If the rectangle has a width of 14 centimeters, what is its length?
astra-53 [7]

Answer:

277 cm

Step-by-step explanation:

A=l*w\\3,878=l*14\\l=\frac{3,878}{14} \\l=277

7 0
2 years ago
Prove that the product of a nonzero rational number together with an irrational number is an irrational number.
melamori03 [73]
Each time they assume the sum<span> is </span>rational<span>; however, upon rearranging the terms of their equation, they get a contradiction (that an </span>irrational number<span> is equal to a </span>rational number<span>). Since the assumption that the </span>sum of a rational<span> and </span>irrational number<span> is </span>rational<span>leads to a contradiction, the </span>sum<span> must be </span>irrational<span>.</span>
7 0
3 years ago
"Find x" I managed to get -6/2c, I just want to double check if that is correct
Soloha48 [4]

- 6/2c is the correct solution

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hence 2cx = - 6

dividing both sides by 2c gives x = - 6/2c


7 0
3 years ago
9y + 6 + 2(5 + y) = blank y + blank
maria [59]

Answer:

<h2><em>1</em><em>1</em><em>y</em><em>+</em><em>1</em><em>6</em></h2>

<em>Solution</em><em>,</em>

<em>9y + 6 + 2(5 + y) \\  = 9y + 6 + 10 + 2y \\  combine \: like \: terms \\  = 9y + 2y + 6 + 10 \\ simplify \\  = 11y + 16</em>

<em>hope </em><em>this </em><em>helps.</em><em>.</em><em>.</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>

5 0
2 years ago
Read 2 more answers
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