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Dovator [93]
3 years ago
12

Factor completely: x2 + 10x + 24 (Which is the right answer?)

Mathematics
1 answer:
Wittaler [7]3 years ago
4 0

Answer:

<h2>(x + 6)(x + 4)</h2>

Step-by-step explanation:

x^2+10x+24=x^2+6x+4x+24=x(x+6)+4(x+6)=(x+6)(x+4)

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does the following system of equations have a solution if so find it. 2x+y+z= 4 x-y+3z= -2 -x+y+z= -2
saul85 [17]
I'd suggest using "elimination by addition and subtraction" here, altho' there are other approaches (such as matrices, substitution, etc.).

Note that if you add the 3rd equation to the second, the x terms cancel out, and you are left with the system

 - y + 3z = -2
   y  + z  =  -2
-----------------
         4z = -4, so z = -1.

Next, multiply the 3rd equation by 2:  You'll get -2x + 2y + 2z = -2.

Add this result to the first equation.  The 2x terms will cancel, leaving you with the system

2y + 2z = -2
  y  +  z  = 4

This would be a good time to subst. -1 for z.  We then get:

-2y - 2 = -2.  Then y must be 0.  y = 0.

Now subst. -1 for z and 0 for y in any of the original equations.

For example, x - (-1) + 3(0) = -2, so x + 1 = -2, or x = -3.

Then a tentative solution is     (-3, -1, 0).

It's very important that you ensure that this satisfies all 3 of the originale quations.
5 0
3 years ago
What number would represent 6.9 meters below sea level? *
rewona [7]

Answer:

Step-by-step explanation:

Its actually -6.9

6 0
3 years ago
4|n|-5=7 please help me solve
DedPeter [7]
I think you meant to type

4(n)-5=7.

4n = 7 + 5

4n = 12

n = 12/4

n = 3
3 0
3 years ago
Read 2 more answers
What is bigger . 17 or . 165 meters? And why?
Vadim26 [7]
.17 because there is a zero behind the 7! .170 and .165. .17 is bigger
7 0
3 years ago
Whoever answer is the best gets brainlist
Otrada [13]
The answer is 18^8 because u add exponents

8 0
3 years ago
Read 2 more answers
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