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Alina [70]
3 years ago
9

Help meh plz!!!!! will give brainlest if correct

Mathematics
1 answer:
docker41 [41]3 years ago
8 0
8.-6,-2
9.-1/2
10.10
11.two
12.none
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Help please............
Arisa [49]
The answer is D I think, cause sum means plus and product means times
7 0
3 years ago
Read 2 more answers
Y= 4x +3, 4x + y =3 are they parallel or perpendicular
FrozenT [24]

Answer:

they are perpendicular  

Step-by-step explanation:

because the slope are opposite which means the lines intersect.

5 0
3 years ago
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9. Solve the following system of equations. x + 2y − 6 = z 3y − 2z = 7 4 + 3x = 2y − 5z A. x = 0, y = 5, z = 4 B. C. D. x = 2, y
Inessa [10]
X + 2y - 6 = z..........x + 2y - z = 6
3y - 2z = 7
4 + 3x = 2y - 5z.....3x - 2y + 5z = -4

x + 2y - z = 6.....multiply by -3
3x - 2y + 5z = -4
---------------------
-3x - 6y + 3z = -18 (result of multiplying by -3)
3x - 2y + 5z = -4
--------------------add
-8y + 8z = - 22

-8y + 8z = -22
3y - 2z = 7 .....multiply by 4
----------------
-8y + 8z = -22
12y - 8z = 28 (result of multiplying by 4)
----------------add
4y = 6
y = 6/4 reduces to 3/2

-8y + 8z = -22
-8(3/2) + 8z = -22
-12 + 8z = -22
8z = -22 + 12
8z = -10
z = -10/8 reduces to -5/4

x + 2y - 6 = z
x + 2(3/2) - 6 = -5/4
x + 3 - 6 = -5/4
x - 3 = -5/4
x = -5/4 + 3
x = -5/4 + 12/4
x = 7/4

solution is (7/4, 3/2, -5/4).....x = 7/4, y = 3/2, and z = -5/4
4 0
3 years ago
Choose one of the factors of x3 − 1331.
Dmitry [639]
Answer A) x-11
Hope this helps!
3 0
3 years ago
Read 2 more answers
Help please! 50 points! Troll answers WILL be reported
natka813 [3]

Answer:

Think its B. but if not it should be E.

Step-by-step explanation:

4 0
3 years ago
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