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andreyandreev [35.5K]
3 years ago
13

write the definitions of the identity property of addition and the commutative property of addition.. use the addition table to

provide exanples of each.
Mathematics
2 answers:
ycow [4]3 years ago
8 0

Answer:

identiy is a+0=a

when you add 0 to a number, it retains its identity

commutaive

you can change the order of multiplicaiton or additon

a+b=b+a

Yuliya22 [10]3 years ago
7 0
Identiy is a+0=a
when you add 0 to a number, it retains its identity


commutaive
you can change the order of multiplicaiton or additon

a+b=b+a
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Write an equation in point-slope form for the line that passes through the point with the given slope. (-5, -8), m = -2
Arada [10]

Answer:

Y= -2x - 18

Step-by-step explanation:

Hope it works

4 0
3 years ago
The lists below gives the donations, in dollars that two different charities received in 1 day. Compare the means of the two dat
icang [17]

Answer:

The mean of Planted Society's donations received is higher than Bees Park Expansion's.

Step-by-step explanation:

To get the mean, you want to add all of the numbers up and divide by how many numbers up. For example, you add all of the values for Planted Society and get 140. We know that there are 7 numbers given, so we do 140 divided by 7 to get a mean of 20. Same with Bees Park Expansion; add to get a total of 152. There are 8 numbers, and 152 divided by 8 is 19. This means 20>19. Mean is also written as average in questions.

6 0
3 years ago
Can anyone help me with these i need them befire tomorrow
mash [69]
When you have a scale factor as percentage, is better to convert that percentage into a fraction by divide it by 100%. That way, it will be much easier to scale your figures.

1. 
The scale factor we need to apply to our rectangle is 60%. Firts, lets convert our scale factor into a fraction: \frac{60}{100} = \frac{3}{5}. Next, we just need to multiply each side of our rectangle by our fraction:
length=16( \frac{3}{5})=9.6
width=8( \frac{3}{5} )=4.8
So, our new rectangle will have a length of 9.6 units and a width of 4.8 units.

2. This time the scale factor is 120%. Just as before, lets convert it into a fraction: \frac{120}{100} = \frac{6}{5}, and just as before lets multiply each side of our triangle by our fraction:
base=10( \frac{6}{5} )=12
side=8( \frac{6}{5} )=9.6
So, our new isosceles triangle will have a base of 12 units and tow sides of length 9.6 units each.

3. This time the scale factor is 150%. Just as before, lets convert it into a fraction: \frac{150}{100} = \frac{3}{2}, and just as before lets multiply each side of our polygon by our fraction:
12( \frac{3}{2} )=18
15( \frac{3}{2} )=22.5
13( \frac{3}{2} )=19.5
So, our new polygon will have a side of 12 length units, tow sides of 15 length units, and two side of 15 length units.

4. This time our factor is 75%. Just as before, lets convert it into a fraction: \frac{75}{100} = \frac{3}{4}, and just as before lets multiply each side of our parallelogram by our fraction:
side=25( \frac{3}{4} )=18.75
So, our new parallelogram will have tow sides of length 18.75 units.

7 0
3 years ago
(will give brainliest!!)
Alex73 [517]
Hey there!

To figure out what "x" means, you can divide the numbers 126 and 14  . . .

126 divided by 14 = 9

9 x 14 = 126

9 = x

----------------
x = 9
----------------

Hope this helps you.
Have a great day!
4 0
3 years ago
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A total of 330 children and adults attended a school play. There were 21 times as many children in attendance as there were adul
Pani-rosa [81]

Answer:

15

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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