3 years ago

Help plsss find length..

Mathematics

1 answer:

posledela3 years ago

8 0

I think it’s been awhile but just ur 140/360 then times that by pi then 2 then times r= 12.22

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Help A)40 B)50 C)130

omeli [17]

Answer:

Step-by-step explanation:

180 -40 - 90 = 50

I don't remember the name of the type of angle, but since that one angle is 50 the other side is also 50.

180 - 90 - 50 = 40

Tell me if I am wrong.

Can I get brainliest

8 0

4 years ago

Give the least common multiple: 3a, 15 _____

stiks02 [169]

Answer:

Answer: LCM of 3 and 15 is 15. 2.

Step-by-step explanation:

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4 0

3 years ago

Read 2 more answers

3r+2/4=2 solve for r

sladkih [1.3K]

Answer: r=1/2

Step-by-step explanation:

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3 years ago

A market research team compiled the following discrete probability distribution, where X represents the number of automobiles ow

rodikova [14]

Answer:

The standard deviation of X is 0.7

Step-by-step explanation:

We are given the following distribution:

x: 0 1 2 3

P(x): 0.3 0.5 0.2 0.4

We have to find the standard deviation of X.

Formula:

$E(x) = \displaystyle\sum x_iP(x_i)\\\\E(x) =0(0.3) + 1(0.5) + 2(0.2) + 3(0.4)\\\\E(x) = 2.1\\\\E(x^2) = \displaystyle\sum x_i^2P(x_i)\\\\E(x^2) =0(0.3) + 1(0.5) + 4(0.2) + 9(0.4)\\\\E(x^2) = 4.9\\\\Var(x) = E(x^2) - (E(x))^2 = 4.9-(2.1)^2 = 0.49\\\\\sigma(x) = \sqrt{Var(x)} =\sqrt{0.49} = 0.7$

Thus, the standard deviation of X is 0.7

6 0

3 years ago

4x/3 + 2(3- x) = 5 Solve for x as an FRACTION

forsale [732]

Answer:

<h2>The answer is .... x = 3/2 and if you want to write it as a mixed fraction i will be x= 1 and 1/2</h2>

Step-by-step explanation:

Hope this Helped :)

6 0

3 years ago