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olya-2409 [2.1K]
2 years ago
6

7. Which of the following illustrates the commutative property of multiplication?

Mathematics
1 answer:
Zigmanuir [339]2 years ago
3 0
X^2 + 5 = 5 + x^2 will give you the same answer. Also know as the commutative property. Answer is (3)
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A bag of marbles can be divided evenly among 2,3 or 4 friends. A) How many marbles might be in the bag? B) What is the least num
agasfer [191]

Answer:

a)12 b)12 c)36

Step-by-step explanation:

a)find least common multiple. the number of marbles is that number * n (where n is an integer)

b) the least common multiple. it is 4*3=...

c)12*3 =?

then just divide by 2,3,4 to get answer

6 0
3 years ago
The roots of the equation 3x²-2x-4=0 are J and K. Evaluate J² + K².
melamori03 [73]

Answer:

28/9

Step-by-step explanation:

If the roots are J and K, then:

3 (x − J) (x − K) = 0

3 (x² − (J+K)x + JK) = 0

So if we factor out the leading coefficient:

3x² − 2x − 4 = 0

3(x² − 2/3x − 4/3) = 0

The coefficient of the second term is the sum of the roots:

J + K = 2/3

And the constant is the product of the roots:

JK = -4/3

If we take the sum of the roots and square it:

(J + K)² = (2/3)²

J² + 2JK + K² = 4/9

And subtract twice the product:

J² + K² = 4/9 − 2JK

J² + K² = 4/9 − 2(-4/3)

J² + K² = 4/9 + 8/3

J² + k² = 28/9

6 0
3 years ago
Cam is going to roll a fair 6-sided die 2,400 times. What is the best prediction for the number of times that cam will roll the
ivolga24 [154]
It doesn’t matter how many times she rolls the dice. she will have a 1/6 chance is rolling the number 4, which is a 16.6% chance
4 0
3 years ago
Read 2 more answers
SOLVE: 18x+103x-3x<br> ill give brainliest
JulijaS [17]

Answer:

118x

Step-by-step explanation: hopes this helps

4 0
3 years ago
4X-y=6<br> 3X+2y=21<br> Commomn core
Alex73 [517]
Assuming you need to find the solution, it's x=3 and y=6
I used elimination

3 0
3 years ago
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