3 years ago

1) Find the mean. 14, 2, 12, 11,2, 14, 3, 2, 12 A) 2 B) 8 C) 11 D)

Mathematics

1 answer:

artcher [175]3 years ago

6 0

Answer:

Step-by-step explanation:

Add all the numbers and then divide them by how many numbers there are.

(14 + 2 + 12 + 11 + 2 + 14 + 3 + 2 + 12) = 72

72/9 = 8

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3 years ago

What is the length of x?

Marat540 [252]

Answer:

The length of 'x' is 4

Step-by-step explanation:

We can use the pythagorean theorem to solve this.

The pythagorean theorem is:

$a ^{2} + b^{2} = {c}^{2}$

$a ^{2} + b^{2} = c^{2} \\ {3}^{2} + {b}^{2} = 5^{2} \\ 9 + {b}^{2} = 25 \\ \frac{ - 9 \: \: \: \: \: \: \: \: = - 9}{b ^{2} = \sqrt{16} } \\ b = 4$

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3 years ago

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$6469.177
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3 years ago

15 + 10² • [12 – (12 – 3 • 2)] + 6

IRINA_888 [86]

[ Answer ]

$10458$

[ Explanation ]

Parenthesis

Exponents

Multiply

Divide

Add

Subtract

Parenthesis:

3 * 2 = 12

12 - 12 = 0

12 - 0 = 12

10^2 * 12

10 ^ 2 = 144

144 * 12 = 1728

1728 + 15 = 1743

1743 + 6 = 10458

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3 years ago

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I don't understand how you find the value of expressions. Ex..<br> 5•[7+7÷(6+1)]+4•12

Alexxandr [17]

= [7+7 <span>÷ 7] + 4.12
= [7+1] + 4.12
= 8 + 4.12
= 12.12

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3 years ago

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