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3 years ago

What is the approximate result of converting 20 centimeters into inches? remember that 1inch = 2.54centimeters

2 answers:

6 0

20 cm * 1 inch / 2.54 cm = <span> <span> <span> 7.874015748 </span> </span> </span> inches
So the approximate result is 20 cm = 7.9 inches

Umnica [9.8K]3 years ago

5 0

Answer:

7.9 inches.

Step-by-step explanation:

We are asked to find the approximate length for converting 20 centimeters into inches.

We know that 1 inch = 2.5 centimeters.

$\text{1 centimeter}=\frac{1}{2.54}\text{ inch}$

$\text{20 centimeter}=\frac{20}{2.54}\text{ inch}$

$\text{20 centimeter}=7.874015748\text{ inch}\approx 7.9\text{ inch}$

Therefore, 20 centimeters are approximately 7.9 inches.

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Is my answer correct? 10 points + brainleist!

Liono4ka [1.6K]

Answer:

your answer is incorrect. The correct answer is $h=-13$ and $k=13$ .

Step-by-step explanation:

If a quadratic function is $f(x)=ax^2+bx+c$ and a>0, then minimum value of the function at point $\left(-\dfrac{b}{2a},f(-\dfrac{b}{2a})\right)$ .

The given function is

$f(x)=x^2+bx+182$

Here, a=1, b=b and c=182. So.

$-\dfrac{b}{2a}=-\dfrac{b}{2(1)}=-\dfrac{b}{2}$

Put $x=-\dfrac{b}{2}$ in the given function to find the minimum value of the function.

$f(-\dfrac{b}{2})=(-\dfrac{b}{2})^2+b(-\dfrac{b}{2})+182$

We know that minimum value is 13. So,

$13=\dfrac{b^2}{4}-\dfrac{b^2}{2}+182$

$13-182=-\dfrac{b^2}{4}$

$-169=-\dfrac{b^2}{4}$

$169\times 4=b^2$

Taking square root on both sides.

$13\times 2=b$

$b=26$

The value of b is 26.

So, the given function is

$f(x)=x^2+26x+182$

Now, add and subtract square of half of coefficient of x.

$f(x)=x^2+26x+182+(13)^2-(13)^2$

$f(x)=(x^2+2(13)x+(13)^2)+182-169$

$f(x)=(x+13)^2+13$

On comparing with $f(x)=(x-h)^2+k$ , we get

$h=-13$

$k=13$

Therefore, your answer is incorrect.

8 0

2 years ago

What is 2<br>two plus two

bagirrra123 [75]

The answer is 2+2=4 LOL

4 0

3 years ago

Read 2 more answers

Can someone help me answer this?

mart [117]

Answer:

x = 40 , y = 70

Step-by-step explanation:

y = 70°

x° = 180° - 2 × 70° = 40°

5 0

3 years ago

Read 2 more answers

5 less than the square of a number

yanalaym [24]

x^2 - 5 this will be the equation formed.

<h3>What is exponents?</h3>

An exponent is the number of times a number is multiplied by itself. For example, 2 to the third (written as 23) means: 2 x 2 x 2 = 8. 23 is not the same as 2 x 3 = 6. Remember that a number raised to the power of one is itself.

<h3>Calculation </h3>

let the number be x

x^2 - 5 this will be the equation formed

learn more about exponents here :

brainly.com/question/5497425

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6 0

7 months ago

Make 2 sets of data 8 numbers each between 1 and 25. Then calculate the median and IQR for each data set.

vlada-n [284]

The median of the data set will be 15.5. The data set is in between the 1 to 25.

<h3>What is median?</h3>

Median is such a number for the arranged data set in ascending or descending order, such that to its left and to its right belong the same number of observations.

The data set between the number is;

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25

The value of IQR for data set is;

First Quartile Q1 = 6.5

Second Quartile Q2 = 13

Third Quartile Q3 =19.5

The median of the data set is;

$\rm Median= \frac{15+16}{2} \\\\ Median= 15.5$

Hence, the median of the data set will be 15.5.

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1 year ago