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julia-pushkina [17]
3 years ago
9

I need the type of properties​

Mathematics
1 answer:
kobusy [5.1K]3 years ago
4 0

Answers:

  1. Distributive Property
  2. Inverse Property
  3. Identity Property
  4. Associative Property
  5. Commutative Property
  6. Multiplication Property of Zero

=========================================================

Explanations:

  1. The distributive property is a*(b+c) = a*b+a*c. We multiply the outer term 'a' by each term inside (b and c), then add up the results. In this specific case, we are multiplying the outer 2 by x and 3. So that's why 2(x+3) = 2x+2*3 = 2x+6. The concept of factoring takes this process in reverse, so we go from 2x+6 to 2(x+3).
  2. The inverse property, specifically the additive inverse property, is where we can add any number to its negative counterpart to always get 0. The expression 2+(-2) is the same as 2-2. We can think of it like "we're on the 2nd floor and we go down 2 floors to end up on floor 0". In general, the additive inverse property is x+(-x) = 0, which is the same as -x+x = 0.
  3. We can multiply any number by 1, to get the same number. So that's why 1*x = 1x = x. Similarly, x*1 = x as well. This is the multiplicative identity property, often shortened to "identity property".
  4. The parenthesis shifted around, so this means we'll use the associative property. In general, that is a+(b+c) = (a+b)+c.
  5. We can multiply two numbers in any order. The general format is a*b = b*a. This is the commutative property of multiplication. The version for addition is a+b = b+a.
  6. Multiplying 0 by any number leads to 0. So we could have the most complicated expression thought possible, but if we multiply it by 0, then the whole thing goes to 0. At the end of this complicated expression is where the 0 is buried. This idea is useful when it comes to the zero product property where if A*B = 0, then either A = 0 or B = 0 or both are the case.
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4 years ago
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The ratio of the sides of a parallelogram is 3 : 5 and its perimeter is 48 cm, what is its sides?​
pshichka [43]

Answer: 9 and 15

Explanation: For this problem we will be using the formula of the perimeter of the parallelogram and use algebraic equation to solve it.

"The perimeter of a parallelogram is 48cm"

-So we already know the perimeter of this polygon

-We don't know the other sides

-We know both sides are on a ratio of 3/5

-We know the formula for perimeter of a parallelogram is P=2(a+b)

Let's use the formula to solve this. First lets substitute values we know.

1.) Write the formula.

P=2(a+b)

2.) Replace any known values.

48=2(a+b)

3.) This part is the trick part. Since the sides of the parallelogram are on a ratio of 3:5, it means that the first side is 3 times more of any unknown value, while the second side will be 5 times more of that same value. knowing this we can turn this into an Algebraic equation.

48=2(a+b)

48=2(3x+5x)

4.) Solve.

48=2(3x+5x)

48=2(8x)

48=16x

48/16=16x/16

3=x; or x=3

5.) Now that we know our "unknown value", we can though it back into the ration to figure out the sides lengths.

First side length = 3x = 3(3) = 9

Second side length = 5x = 5(3) = 15

6). Therefore, the first side has the length of 9 and the second side has the length of 15.

7.) Check.

P=2(a+b)

P=2(9+15)

p=2(24)

p=48

48=48

6 0
3 years ago
Whoever gets it right can have brainliest but answer ASAP!
Nataly [62]

Answer:

2x18=32

Step-by-step explanation:

just add 18+18=32

thats what you asked in description

5 0
2 years ago
Question on image. (4)<br><br> will report answers out of question. Thank you
dmitriy555 [2]

63°

Step-by-step explanation:

Since CD is a diameter, this means that

arcBD = arcCD - arcCB

= 180° - 54° = 126°

We know that the inscribed angle is half the intercepted arc, therefore angle BCD is given by

angle BCD = (1/2)arcBD

= 63°

6 0
3 years ago
What is the area of a quadrilateral with vertices at (-2, - 6),
svet-max [94.6K]

Answer:

18 sq. unit

you can draw it on no. line

actually it's rectangle with l=3 and b=6

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3 years ago
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