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lisabon 2012 [21]
2 years ago
5

Who could help me solve this

Mathematics
2 answers:
Monica [59]2 years ago
6 0
6561 hope this helps 
Elis [28]2 years ago
6 0
You would turn the -9 into a 9 and multiple 9x9x9x9 so 81 x81 is 6,561 hope it helps
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How many even 3-digit positive integers can be written using the digits 1,2,4,7, and 8?
N76 [4]

Looking at the question, we can see we have 5 different numbers that can go in any order.

<u>5</u> * <u>4</u> * <u>3</u>

The above is basically saying there are 5 different numbers that can be multiplied by 4 other numbers. Those 2 can be multiplied by 3 different ones, leaving us with a 3 digit positive integer.

5 * 4* 3 = 60

4 0
2 years ago
How to graph -x + 2y = 6
larisa86 [58]
In order to graph the equation, you need some coordinates, 
So, put x = 0, 
2y = 6. y = 3.  Coordinate = (0, 3)

Now, put y = 0, 
-x = 6
x = -6   Coordinate (-6, 0)

In short, Just mark that two points and draw a line, graph is done

Hope this helps!
3 0
2 years ago
In a sample of 53 walking canes, the average length was found to be 34.3in. with a variance of 1.9. Give a point estimate for th
Anna11 [10]

Answer:

1.38

Step-by-step explanation:

The point estimate for the population standard deviation of the length of the walking canes is given as the squareroot of variance. Since variance is provided as 1.9 then the standard deviation will be

\sqrt 1.9=1.37840487520902\approx 1.38

Therefore, rounded off to two decimal places, the standard deviation is approximately 1.38

6 0
2 years ago
The area of a square concrete slab is 20 square feet. Find the side length of the square concrete slab if the area is increase b
guapka [62]

The side length of the square concrete slab if the area is increased by 25% is 5feet

The formula for calculating the area of a square is expressed as:

A =  L² where:

L is the side length of the square

Given the area of the square concrete slab = 20 square feet

20 = L²

L =√20

If the area is increased  by 25%, new area will be:

An = 20 + (0.25*20)

An = 20 + 5

An = 25 sq.ft

Get the new length

An = Ln²

25 =   Ln²

Ln = √25

Ln = 5feet

Hence the side length of the square concrete slab if the area is increased by 25% is 5feet

Learn more here: brainly.com/question/11300671

7 0
2 years ago
Is 19-10 equal to20-10 is 19 take away 10 equill to 20 take away 10
Anni [7]
First lets write this out:-
 
            ?
19 - 10 = 20 - 10

Now lets solve:-

19 - 10 =9

   ?
9 = 20 - 10

20 - 10 = 10

9 ≠ 10

Since 9 does not equal 10:-

19 - 10 ≠ 20 - 10

Hope I helped ya!! 
4 0
2 years ago
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