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Advocard [28]
3 years ago
13

Which pair of expressions is equivalent using the Associative Property of Multiplication? 6(4a ⋅ 2) = 24a ⋅ 12 6(4a ⋅ 2) = (4a ⋅

2) ⋅ 6 6(4a ⋅ 2) = 6 ⋅ 4a ⋅ 2 6(4a ⋅ 2) = (6 ⋅ 4a) ⋅ 2
Mathematics
1 answer:
galben [10]3 years ago
4 0


<span>Associative Property of Multiplication : (ab)c = a(bc)
</span>so
answer is

6(4a ⋅ 2) = (6 ⋅ 4a) ⋅ 2
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Help please please !!!!!!!
lyudmila [28]
In each case, you can use the second equation to create an expression for y that will substitute into the first equation. Then you can write the result in standard form and use any of several means to find the number of solutions.

System A
  x² + (-x/2)² = 17
  x² = 17/(5/4) = 13.6
  x = ±√13.6 . . . . 2 real solutions

System B
  -6x +5 = x² -7x +10
  x² -x +5 = 0
The discriminant is ...
  D = (-1)²-4(1)(5) = -20 . . . . 0 real solutions

System C
  y = 8x +17 = -2x² +9
  2x² +8x +8 = 0
  2(x+2)² = 0
  x = -2 . . . . 1 real solution
7 0
3 years ago
Help asap plzz<br> -3x + 7 = -8
viva [34]

Answer:

x=5

Step-by-step explanation:

-3x+7=-8

Bring 7 to the other side, it becomes negative

-3x=-8-7

Signs are same on rhs so u add

-3x = -8+-7= -15

Bring -3 to the other side n divide

therefore,

x=-15/-3

= +5 (two negatives become positive)

Hope it helps!

8 0
3 years ago
Read 2 more answers
A cube has a base of 9 in2 and height of 12 inches.
borishaifa [10]

Answer:

B is the best answer., formula for square is L²

6 0
3 years ago
Read 2 more answers
Simplify the rational expressions. state any excluded values
dlinn [17]

Answer:

8.) 3

9.) x+5

10.) 50x/2x-5

11. 3n4-n3(cubed)/n3+n2-n-1


Step-by-step explanation:


4 0
3 years ago
I don't know how to do this help
aleksklad [387]

Answer:

x=2

Step-by-step explanation:

5 divided by 2.5 (or 2 1/2)

5/2.5=2

5 0
3 years ago
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