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grigory [225]
2 years ago
6

5+ -2x = 2x + -5 what is the steps

Mathematics
1 answer:
Vladimir [108]2 years ago
3 0
5+-2x=2x+-5
5=4x+-5 (add 2x to both sides)
10=4x (add 5 to both sides)
10/4=x (divide both sides by 4)
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Factor. x^2-5x-84 pls help
vagabundo [1.1K]

Answer:

(x-12) (x+7)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
I need an explanation how to do this ASAP I will give you 20 POINTS!!
mars1129 [50]
For the first digit you are choosing from 2 digits
for the second digit you are choosing from 2 digits
for the third digit you are choosing from 2 digits
2*2*2=8
111
110
011
101
000
001
100
010
However......
A number doesn't usually start with a 0 or 0s.
Therefore, if you want 3-digit numbers and not just permutations using 0 and 1, then you must eliminate
011, 000, 001, and 010
Seeing that the first digit can't be 0, you choose from 1, then 2, and then 2 digits again; 1*2*2=4 numbers
You choose which answer best suits your problem.
6 0
2 years ago
Work out the volume of a cuboid <br> 10cm by 3cm by 2cm?
Firlakuza [10]
10 x 3 x 2 = the volume
10 x 3 = 30
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it is cm^3 because all of the numbers you have are in cm
8 0
3 years ago
Solve this equation using the radical equation method
Yuki888 [10]
The domain:
3x+6\geq0\ \ |-6\\3x\geq-6\ \ \ |:3\\x\geq-2\\\\D:x\in\left< -2;\ \infty\right)

2x=\sqrt{3x+6}-1\ \ \ |+1\\\\2x+1=\sqrt{3x+6}\ \ \ \ |^2\\\\(2x+1)^2=\left(\sqrt{3x+6}\right)^2\ \ \ |use:\ (a+b)^2=a^2+2ab+b^2\\\\(2x)^2+2\cdot2x\cdot1+1^2=3x+6\\\\4x^2+4x+1=3x+6\ \ \ \ |-3x-6\\\\4x^2+x-5=0\\\\4x^2-4x+5x-5=0\\\\4x(x-1)+5(x-1)=0\\\\(x-1)(4x+5)=0\iff x-1=0\ \vee\ 4x+5=0\\\\x=1\ \vee\ 4x=-5\\\\x=1\in D\ \vee\ x=-1.25\in D

Answer:\ \boxed{x=-1.25\ \vee\ x=-1}
6 0
3 years ago
A baseball player gets 7 hits in the first 15 games of the season. if he continues hitting at the same rate, how many hits will
inessss [21]
Hey there,
15 games = 7 hits
1 game = 7 / 15
             = <span>0.46666666666
45 games = </span><span>0.46666666666 x 45
                 = 21

Hope this helps :))

<em>~Top♥</em>
</span>
3 0
3 years ago
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