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zaharov [31]
4 years ago
12

Solve this equation and list the solution: x^3+18x=0

Mathematics
1 answer:
postnew [5]4 years ago
7 0

Factor out the common term x

x(x^2 + 18) = 0

Solve for x; How?

Ask yourself: When will x(x^2 + 18) eqal zero?

When x = 0 or x^2 + 18 = 0

Solve each of the 2 equations above

Thus, x = 0, ±3√2i

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How to find the perimeter of a square one side is 10x other side is 6x+8?
Yanka [14]
To find the perimeter of the square, you add all four sides together:
10x + 10x + (6x + 8) + (6x + 8)
20x + 12x + 16 = P
32x + 16 = P

you have to find x to get the actual perimeter. Since the shape is a square, all 4 sides are equal, so you can set 10x and (6x + 8) as equal to each other.
10x = 6x + 8
4x = 8
x = 2

Now you just plug in x and finish the rest of the problem, and you have the answer:
32(2) + 16 = P
64 + 16 = P
P = 80

(if you find this helpful, marking this as the brainliest answer would make my day :)
4 0
3 years ago
i need the answer and if possible, can you show your work? i would like to know the steps. Please and thanks you
lisov135 [29]

Answer: The volume would be 61.261.

Step-by-step explanation: To find the volume of a sector of a cylinder use the following formula and fill in the variables with the appropriate data.  V = π r² h * Θ / 360°

7 0
3 years ago
Help me -2 (8 - e) = 2 - e​
-BARSIC- [3]

Answer:

e = 6

Step-by-step explanation:

Step 1: Write equation

-2(8 - e) = 2 - e

Step 2: Solve for <em>e</em>

  1. Distribute -2: -16 + 2e = 2 - e
  2. Add e to both sides: -16 + 3e = 2
  3. Add 16 to both sides: 3e = 18
  4. Divide both sides by 3: e = 6

Step 3: Check

<em>Plug in e to verify it's a solution.</em>

-2(8 - 6) = 2 - 6

-2(2) = -4

-4 = -4

3 0
3 years ago
Thirty two soccer teams enter a statewide competition. The teams are paired randomly in each round. The winning team goes on to
horrorfan [7]
16 matches need to be played to crown one winner
8 0
3 years ago
Read 2 more answers
Which expression is equivalent to 3(4y)<br> I WILL MARK BRAINLIEST
Anastaziya [24]

Answer:

Step-by-step explanation:

Well 12y is the most obvious answer.

Anything that makes 12 is good enough.

4(3y) is another answer

12(y)

1(12y)

6(2y)

2(6y

7 0
3 years ago
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