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timurjin [86]
2 years ago
14

Is -7+9 equal to -9+7

Mathematics
2 answers:
sdas [7]2 years ago
8 0
The two expressions are not equal
dezoksy [38]2 years ago
4 0

Answer:

No

Step-by-step explanation:

-7+9 would be 2

while -9+7 would be -2

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{35 POINTS)What are the solutions of 2a^3-3a^2=8a-12 ?
valentinak56 [21]
Greetings!

2a^3-3a^2=8a-12
Add -(8a-12) to both sides.
(2a^3-3a^2)+-(8a-12)=8a-12-(8a-12)
Simplify.
2a^3-3a^2-8a+12=0
Rearrange.
2a^3-8a-3a^2+12=0
Factor Out 2a.
2a(a^2-4)-3a^2+12=0
Factor Out the difference of squares.
2a(a-2)(a+2)-3a^2+12=0
Factor out -3.
2a(a-2)(a+2)-3(a^2-4)=0
Factor Out the difference of squares.
2a(a-2)(a+2)-3(a-2)(a+2)=0
Find Common Factor.
(a+2)(a-2)(2a-3)=0
Set Factors to Equal 0.
(a+2)=0 \\  \\ (a-2)=0 \\  \\ (2a-3)=0
a=-2 \\ \\ a=2 \\ \\ a=3/2

Hope this helps.
-Benjamin
5 0
3 years ago
Which is greater 205.1000 or 0.205
nadezda [96]
205.1000>0.205
There is no number before the decimal for 0.205, therefore it is less than. If there was a number before the decimal, you would have to "calculate" whether or not it is greater than 205.1000 starting from .1000. 
8 0
3 years ago
Define the range of the following:
Stels [109]

Answer:

{-2, 3, 4, 5}

General Formulas and Concepts:

<u>Math</u>

  • Number Line

<u>Algebra I</u>

  • Range is the set of y-values that are outputted by function f(x)
  • Builder Set Notation {x}

Step-by-step explanation:

According to our graph, our y-values are 3, 4, 5 and -2. Since they are all closed dots, they are inclusive in the range:

Remember to put it in number line order.

{-2, 3, 4, 5}

6 0
3 years ago
What is the area of the rectangle?
olya-2409 [2.1K]

Answer:

I think it’s 60 but I could be wrong, sorry.

Step-by-step explanation:

3 0
3 years ago
A
netineya [11]

1.25 percent of 3000=37.5

37.5 times 4=150

3000-150=2850

5 0
2 years ago
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