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4 years ago

7

Which of the following expression, when evaluated, equals an irrational number ?

1 answer:

Sav [38]4 years ago

4 0

Answer:

the answer for number 38 is H

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Find the value of x<br><br>is this correct?

andriy [413]

Answer:

Yes

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

What is the point of intersection of x-2y=8 and y=2- 1/2 x

Alex777 [14]

There are several ways you can go about solving this. The easiest way is to graph it with desmos. But I'll show you how to do it algebraically.

So what it means when it says the point of intersection is what is the ordered pairs.

Well we can do this using substitution since that might be easier

So since y = 2 - 0.5x we can substitute it into x - 2y = 8
That gets us:

x - 2(2 - 0.5x) = 8

Next distribute the -2:

x -4 + x = 8

Combine like terms and solve for x!

2x = 12
x = 6

Now substitute x into any of our y = 2 - 0.5x so we get

y = 2 - 0.5(6)

y = -1

So our answer is (6,-1)

7 0

3 years ago

Correct answer gets branliest!!

zlopas [31]

Answer:

Step-by-step explanation:

- x( x² - 12x + 21 )

5 0

3 years ago

PLEASE HELP! 20 PTS!!!

bazaltina [42]

Answer:

As both data distribution are not symmetric for both Coffee Shop A and Coffee Shop B. Therefore, it is appropriate to mention the centers of distribution in terms of median for both coffee shops.

Hence, option B should be correct option.

Step-by-step explanation:

<u><em>Calculation for Coffee Shop A:</em></u>

The data distribution for shop A:

$12, 52, 57, 33, 51, 15, 46, 45$

Arrange the data in ascending order.

$12, 15, 33, 45, 46, 51, 52, 57$

Mean for shop A:

$Mean=\frac{12+15+33+45+46+51+52+57}{8}=38.875$

$Median=\frac{(\frac{n}{2})th+(\frac{n}{2}+1)th}{2}=\frac{45+46}{2}=45.5$

As Mean and Median are not close. Hence, data distribution is not symmetric for Coffee Shop A.

<em><u>Calculation for Coffee Shop B:</u></em>

The data distribution for shop B:

$17, 16, 36, 35, 12, 9, 34, 15$

Arrange the data in ascending order.

$9, 12, 15, 16, 17, 34, 35, 36$

Mean for shop B:

$Mean=\frac{9+12+15+16+17+34+35+36}{8}=21.75$

$Median=\frac{(\frac{n}{2})th+(\frac{n}{2}+1)th}{2}=\frac{16+17}{2}=16.5$

As Mean and Median are not close. Hence, data distribution is not symmetric for Coffee Shop B.

As both data distribution are not symmetric for both Coffee Shop A and Coffee Shop B.

Therefore, it is appropriate to mention the centers of distribution in terms of median for both coffee shops.

Hence, option B should be correct option.

<em>Keywords: data distribution, mean, median</em>

<em> Learn more about data distribution and symmetry from brainly.com/question/12893899</em>

<em> #learnwithBrainly</em>

6 0

3 years ago

Read 2 more answers

How long will it take for an investment to double in valve if it earns 12.25% compounded continuously ?

goblinko [34]

Answer:

At the given rate it will take 3 years and 5 months for the investment to be doubled

Step-by-step explanation:

Here, we want to get the amount of time it will take an investment that earns 12.25% to double if it’s compounded continuously

We can have the exponential relation as follows;

P = I( 1 + r)^n

P is the present value, let us call this 2x as it two times the initial

I is the initial value which is x in this case

r is the interest rate = 12.25% which is same as 12.25/100 = 0.1225

n is the number of years which we want to calculate

Thus, we have

2x = x( 1 + 0.1225)^n

2 = 1.225^n

Ln 2 = n ln 1.225

n = ln 2/ln 1.225

n = 3.42

if 3.42 is the number of years, let us have 0.42 in months

That will be 0.42 * 12 = 5.04

So we are looking at the investment being doubled at 3 years and 5 months

6 0

3 years ago