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damaskus [11]
3 years ago
15

Please help me im so confused

Mathematics
2 answers:
3241004551 [841]3 years ago
7 0

Answer:

9w+23

Step-by-step explanation:

bc i kno

plz mark ME  brainilist

grigory [225]3 years ago
6 0

Answer:

the answer is 9w+2/3

Step-by-step explanation:

Please mark me branliest

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A circular tablecloth has a diameter of 48 centimeters. Martel wants to sew a decorative braid around the tablecloth. What is ci
Anit [1.1K]
Hello!

To solve this you use the equation to find the circumference of a circle which is

C = 2 \pi r

C is circumference
r is radius which is half the diameter

Put in the values you know and 3.14 for pi

C = 2 * 3.14 * 24

Multiply

C = 150.72

The answer is 150.72 centimeters

Hope this helps!
8 0
3 years ago
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emmainna [20.7K]

Answer:

slope: -1

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4 years ago
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3 years ago
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Given the probability density function f(x) = 1/5 over the interval [4, 9], find the expected value, the
SIZIF [17.4K]

Answer:

Step-by-step explanation:

Assume that f(x) = 0 for x outside the interval [4,9]. We will use the following

E[X^k] = \int_{4}^{9}x^k f(x) dx

Var(X) = E[X^2}- (E[X])^2

Standard deviation = \sqrt[]{Var(X)}

Mean = E[X]

Then,

E[X] = \int_{4}^{9}\frac{1}{5}dx = \frac{9^2-4^2}{2\cdot 5} = \frac{13}{2}

E[X^2] = \int_{4}^{9}\frac{x^2}{5}dx = \frac{9^3-4^3}{3\cdot 5} = \frac{133}{3}

Then, Var(x) = \frac{133}{3}-(\frac{13}{2})^2 = \frac{25}{12}

Then the standard deviation is \frac{5}{2\sqrt[]{3}}

8 0
4 years ago
A__is a rule that assigns each value of independent variable to exactly one value of the dependent variable
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A function is a rule that assigns each value of independent variable to exactly one value of the dependent variable.

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3 years ago
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