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3 years ago

Need help on this please

Mathematics

2 answers:

vampirchik [111]3 years ago

7 0

Answer:

113.1

Step-by-step explanation:

A= πr^2

π · 6^2

≈ 113.1

rodikova [14]3 years ago

6 0

Answer:

The answer should be 113.04

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What’s the value of n? 3^n=1/9

Pepsi [2]

Answer:

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Step-by-step explanation:

3^n = 1/9

3^n = 1/(3^2)

3^n = 3^(-2)

n = -2

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3 years ago

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insens350 [35]

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3 years ago

If triangle abc is congruent with triangle DEF, then the measure of angle b is:

gladu [14]

Which property of congruence whould prove BD ≡ BD?

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3 years ago

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In a pizza takeout restaurant, the following probability distribution was obtained for the number of toppings ordered on a large

Elis [28]

Answer:

The random variable (number of toppings ordered on a large pizza) has a mean of 1.14 and a standard deviation of 1.04.

Step-by-step explanation:

The question is incomplete:

The probability distribution is:

x P(x)

0 0.30

1 0.40

2 0.20

3 0.06

4 0.04

The mean can be calculated as:

$M=\sum p_iX_i=0.3\cdot 0+0.4\cdot 1+0.2\cdot 2+0.06\cdot 3+0.04\cdot 4\\\\M=0+0.4+0.4+0.18+0.16\\\\M=1.14$

(pi is the probability of each class, Xi is the number of topping in each class)

The standard deviation is calculated as:

$s=\sqrt{\sum p_i(X_i-M)^2}\\\\s=\sqrt{0.3(0-1.14)^2+0.4(1-1.14)^2+0.2(2-1.14)^2+0.06(3-1.14)^2+0.04(4-1.14)^2}\\\\s=\sqrt{0.3(-1.14)^2+0.4(-0.14)^2+0.2(0.86)^2+0.06(1.86)^2+0.04(2.86)^2}\\\\ s=\sqrt{0.3(1.2996)+0.4(0.0196)+0.2(0.7396)+0.06(3.4596)+0.04(8.1796)}\\\\s=\sqrt{0.3899+0.0078+0.1479+0.2076+0.3272}\\\\ s=\sqrt{ 1.0804 }\\\\s\approx 1.04$

3 0

3 years ago

If would be great if someone answered this I'm sorry if its blurry the set of numbers are (4,4) (5'5)

Morgarella [4.7K]

Answer:

I think its 3752 but i might be wrong not sure

Step-by-step explanation:

or its 15008

5 0

3 years ago