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3 years ago

How to do you solve c/3=30/5

Mathematics

1 answer:

Viktor [21]3 years ago

3 0

Answer:

c=18

Step-by-step explanation:

<em>To solve for c you need to do cross product property</em>

You have to multiply diagonally

So 3*30= 90

5*c= 5c

90= 5c

Now its a one step equation

Divide 90 by 5 =18

c= 18

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Modify the user-defined function GaussPivot in Program 4-2 (Example 4-3) such that in each step of the elimination the pivot row

Reika [66]

Answer:

Step-by-step explanation:

(a) Use the GaussPivotLarge function to solve the system of linear equations in Eq. (4.17).

(b) Use the GaussPivotLarge function to solve the system:

(See the last attachment)

4 0

3 years ago

Find the standard deviation of 21, 31, 26, 24, 28, 26

Vesnalui [34]

Given the dataset

$x = \{21,\ 31,\ 26,\ 24,\ 28,\ 26\}$

We start by computing the average:

$\overline{x} = \dfrac{21+31+26+24+28+26}{6}=\dfrac{156}{6}=26$

We compute the difference bewteen each element and the average:

$x-\overline{x} = \{-6,\ 5,\ 0,\ -2,\ 2,\ 0\}$

We square those differences:

$(x-\overline{x})^2 = \{36,\ 25,\ 0,\ 4,\ 4,\ 0\}$

And take the average of those squared differences: we sum them

$\displaystyle \sum_{i=1}^n (x-\overline{x})^2=36+25+4+4+0+0=69$

And we divide by the number of elements:

$\displaystyle \sigma^2=\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n} = \dfrac{69}{6} = 11.5$

Finally, we take the square root of this quantity and we have the standard deviation:

$\displaystyle\sigma = \sqrt{\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n}} = \sqrt{11.5}\approx 3.39$

8 0

3 years ago

Rationalize the denominator and simplify:

raketka [301]

Answer:

A) (√3-√2)/(√3+√2)

Step-by-step explanation:

i think so

4 0

3 years ago

What are the square roots of 36/100?

Mekhanik [1.2K]

Question:

What are the square roots of 36/100?

Answer

A. −6/10 and 6/10

6 0

3 years ago

Read 2 more answers

area of a triangle: sine formula just please help i’m stuck and i don’t know what to do this was due yesterday

Katyanochek1 [597]

Answer:

269.0

Step-by-step explanation:

Trigonmetric area formula: 0.5 * a* b* sin(C)

a = 46

b=19

c = 38 degrees

0.5 * 46 * 19 * sin(38)

Pulg it into a calculator and you get 269.0441

Then round to the nearest tenth to get 269.0

3 0

3 years ago