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Finger [1]
3 years ago
6

The numbers of chocolate

Mathematics
1 answer:
Mrrafil [7]3 years ago
8 0

mean = sum/n

mean = (5 + 7 + 7 + 9 + 12 + 16 + 21)/7

mean = 77/7

mean = 11

You might be interested in
1 point
Dimas [21]

Answer:

The simplest radical form is 9\sqrt{5} ⇒ (c)

Step-by-step explanation:

To simplify any square root;

  • Factorize the number under the root using prime numbers
  • Take out the root any number repeated twice as one number

<em><u /></em>

<em><u>Examples:</u></em>

1. Simplify \sqrt{8}

factorize 8 using prime numbers

8 = 2 × 2 × 2, then \sqrt{8}=\sqrt{(2)(2)(2)}

Take two of 2 out the root, then \sqrt{8}=2\sqrt{2}

2. Simplify \sqrt{18}

factorize 18 using prime numbers

18 = 2 × 3 × 3, then \sqrt{18}=\sqrt{(2)(3)(3)}

Take the two 3 out the root, then \sqrt{18}=3\sqrt{2}

Let us simplify 3\sqrt{45}

∵ 45 = 3 × 3 × 5

∴ 3\sqrt{45}=3\sqrt{(3)(3)(5)}

→ Take the two 3 out by one 3

∴  3\sqrt{45}=3(3)\sqrt{5}

→ Multiply the numbers out the root

∴ 3\sqrt{45}=9\sqrt{5}

∴ The simplest radical form is 9\sqrt{5}

8 0
2 years ago
Express the first quantity as a percentage of second quantity $45, $120.
Pachacha [2.7K]

Answer: 37.5%

Step-by-step explanation:

Percentage = Given Quantity/Total Quantity*100

So here, it will be like: 45/120*100

                                    =0.375*100

                                    =37.5%

5 0
2 years ago
(5x^4-2x^3-7x^2-39)÷(x^2+2x-4)
lana [24]

Using the Polynomial Division: Divide 5x^{4}−2x^{3} -7x^{2} -39 by x^{2} +2x−4 using long polynomial division.

Answer to the Polynomial Division: 5x^{2} -12x+37+\frac{-122x+109}{x^{2}+2x-4}


4 0
2 years ago
What is the value of x to the nearest tenth
artcher [175]
The answer for your problem is x = 26
7 0
3 years ago
Question 2..plz help meee​
Art [367]

refer to the attachment

7 0
2 years ago
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