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3 years ago

Simplify. 5/√10 A. √5 B. √10/2 C. √2/2 D. √2

Mathematics

1 answer:

worty [1.4K]3 years ago

8 0

Answer:

√10/2

Step-by-step explanation:

5/√10

Rationalizing the surd involves multiplying the numerator and denominator by the surd.

5/√10 * √10/√10

5√10/10

√10/2

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Vlad [161]

9 simplified is radical 3 then 2 on the outside make the answer 3

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3 years ago

A survey found that 89% of a random sample of 1024 American adults approved of cloning endangered animals. Find the margin of er

Kobotan [32]

Answer:

The margin of error for the survey is 0.016

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1024

Sample proportion:

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We have to find the margin of error associated with a 90% Confidence interval.

Formula for margin of error:

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Putting the values, we get:

$M.E = 1.64\times (\sqrt{\dfrac{0.89(1-0.89)}{1024}})\\\\M.E=0.016$

Thus, the margin of error for the survey is 0.016

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3 years ago

In the Cartesian Coordinate System, the intersection of the axis is called the origin. What is this called in the Polar coordina

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4 0

3 years ago

I don't understand this question at all please help if you do

lorasvet [3.4K]

Answer:

Answer is $\frac{4}{3}$

Step-by-step explanation:

To find the interval of x. Use our equations to equal each other.

$-x^2+2x=y,y=0$

$-x^2+2x=0\\-x(x-2)=0\\-x=0 , (x-2)=0\\x=0 ,2$

$\int\limits^2_0 {-x^2+2x} \, dx$

Integrate.

$\frac{-x^3}{3}+x^2\\(\frac{-2^3}{3}+2^2)-[\frac{-0^3}{3}+0^2]\\-\frac{8}{3} +4-0\\-\frac{8}{3}+\frac{12}{3} =4/3$

Using Desmos I have Graphs of both of the equations you have provided. The problem asks us to find the shaded region between those curves/equations.

Proof Check your interval of x.

7 0

2 years ago

I need help with this?

antiseptic1488 [7]

1.) 58

2.) 205

3.) 134

4.) 150

5.) 21

6.) 670

7.) 33

8.) 50/7 or 7 1/7

9.) 42

These are all your answers

4 0

4 years ago