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2 years ago

A sample with which of these variances has a standard deviation that is greater than the variance?

1 answer:

4 0

Since the standard deviation is the square root of variance. The only times where the standard deviation is greater than the variance is when the variance is between the values 0 and 1 exclusively. For example, the square root of 0.25 is 0.5.

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Area of the parallelogram? 308 meters squared

Ainat [17]

The formula to find the area of a parralogram is base x height. the base is 39 and the height is 8! Now all you have to do it multiply. So you’re final answer is 312! Don’t listen to the other person they just wanted the points! Answer: 312 !

6 0

1 year ago

Read 2 more answers

How can i rewrite that with exponents instead of repeated multiplication

Montano1993 [528]

Answer:

10^12

Step-by-step explanation:

Add the exponents when you multiply numbers with exponents

8 0

2 years ago

What are the answers to the questions below?

Tcecarenko [31]

Answer:

You have to follow PEMDAS or parenthesis, exponents, multiplication, division, addition, and subtraction. It's an order to solve equations. I listed the steps and the answers for you below :) I have throughly checked them so they should be correct! yw :D

Step-by-step explanation:

1. 5x + 4x - 6x = 24

9x - 6x = 24

3x = 24

24/3 = 8

x = 8

2. 8y + 5 - 4y + 1 = 46

8y - 4y = 4y

5 + 1 = 6

4y + 6 = 46

4y = 46 - 6

4y = 40

40/4 = 10

y = 10

3. 33 = 5 ( x + 8 ) + 3

33 = 5x + 40 + 3 (because we distributed)

33 = 5x + 43

5x + 43 = 33 (just rewriting it to make it easier)

5x = 33 - 43

5x = -10

-10/5 = -2

so x = - 2

4. 2m + 3 ( m - 8 ) = 1

2m + 3m - 24 = 1

we got 3m - 24 because we distributed the 3

5m - 24 = 1

5m = 25

25/5 = 5

m = 5

5. p + p - 2p + 4p = - 48

2p - 2p + 4p = - 48

4p = - 48

- 48 / 4 = - 12

p = - 12

6. 2 ( y + 5 ) + 3y = 25

2y + 10 + 3y = 25

5y + 10 = 25

5y = 25 - 10

5y = 15

15/5 = 3

y = 3

7. 1/4 h + 3/4 h + 1/2 h + 2 = 5

1/4 h + 3/4 h + 1/2 = 3/2 h

3/2 h + 2 = 5

3/2 h = 5 - 2

3/2 h = 3

h = 2

8. 60 = 4 ( k + 3 ) + 2 ( k - 3 )

60 = 4k + 12 + 2k - 6

4k + 12 + 2k - 6 = 60

6k + 6 = 60

6k = 60 - 6

6k = 54

k = 9

9. - 2 ( d + 1.4 ) - 1.8 = 20.6

-2d + - 2.8 - 1.8 = 20.6

-2d - 2.8 = 22.4

-2d = 25.2

d = - 12.6

10. 8 - 2 ( w + 4 ) = 10

8 + - 2 w + - 8 = 10

-2w + 9 + - 8 = 10

-2w = 10

10 / -2 = -5

w = -5

4 0

2 years ago

2.516x-4)=104 (1:5+0.5x)

Andre45 [30]

Answer:

x= 42.92527821

Step-by-step explanation:

2.156x-4 = 104

x would be

42.92527821

_______________________________________________________

(1:5+0.5x)

and nothing farther can be done with this one

5 0

2 years ago

Ava is 23 cm taller than Olivia, and Olive is half the height of Lucas. If Lucas is1.78 m tall, how tall are Ava and Olive? Expr

bonufazy [111]

Ava's Height = $a$
Olivia's Height = $o$
Lucas' Height = $l$

We know from the question that;

$o = \frac{1}{2}l$

If Lucas is 1.78m tall, then he is 178cm tall, so $l = 178$

$o = \frac{1}{2}178$

$o = 89$

We also know that;

$a + 23 = o$

As we have worked out that $o = 89$ ,

$a + 23 = 89$

$a = 89 - 23$

$a= 66$

$\boxed {a = 66cm, o = 89cm}$

3 0

2 years ago