3 years ago

What is 3 square roots of 2

Mathematics

1 answer:

german3 years ago

4 0

Answer:

Step-by-step explanation:

±3√2. Recall that 2 actually has two roots, one positive and the other negative.

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Please answer this correctly

prohojiy [21]

Answer:

Hi there!

The answer to the answer to this question is: 1,399.286

Step-by-step explanation:

There is two methods you can solve this question, either with long division or short division in this case I chose short division and got 1,399.286

6 0

3 years ago

When I add two to my number and then multiply it by five, I get thirty. What is my number?

rjkz [21]

30/5= 6
6 - 2 = 4
Your number is four

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2 years ago

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Belle and Mabel are both 8-week-old puppies of different breeds. Belle has a mass of 12

balandron [24]

Answer:

3:1

Step-by-step explanation:

Take the fraction and simplify it:

12/4 = 3/1

6 0

3 years ago

(x+3)(x-2) <br> Polynomial in standard form

postnew [5]

You FOIL the binomials out to get a quadratic.

7 0

3 years ago

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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