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Nata [24]
3 years ago
15

Find the sum -12+-5=

Mathematics
1 answer:
Evgen [1.6K]3 years ago
8 0
-12+-5=-17  

hope it helps

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Could someone please help me with this? Solution set of lx^2+mx+n=0 is...?
IgorLugansk [536]

Answer:

Simplifying

lx2 + mx + n = 0

Solving

lx2 + mx + n = 0

Solving for variable 'l'.

Move all terms containing l to the left, all other terms to the right.

Add '-1mx' to each side of the equation.

lx2 + mx + -1mx + n = 0 + -1mx

Combine like terms: mx + -1mx = 0

lx2 + 0 + n = 0 + -1mx

lx2 + n = 0 + -1mx

Remove the zero:

lx2 + n = -1mx

Add '-1n' to each side of the equation.

lx2 + n + -1n = -1mx + -1n

Combine like terms: n + -1n = 0

lx2 + 0 = -1mx + -1n

lx2 = -1mx + -1n

Divide each side by 'x2'.

l = -1mx-1 + -1nx-2

Simplifying

l = -1mx-1 + -1nx-2

Step-by-step explanation:

Hope this helped you!

6 0
3 years ago
Angles
coldgirl [10]
<h3>Answer: XWY and STR</h3>

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Both pairs of alternate exterior angles are shown in the diagram below. They are color coded to help show how they pair up and which are congruent.

A thing to notice: choices B, C, and D all have point W as the vertex of the angles. This means that the angles somehow touch or are adjacent in some way due to this shared vertex point. However, alternate exterior angles never touch because parallel lines never do so either. We can rule out choices B,C,D from this reasoning alone. We cannot have both alternate exterior angles on the same exterior side of the train tracks. Both sides must be accounted for.

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Both lines are parallel, since they have the same slope of 2.
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3 years ago
Help how you do this ?
Eddi Din [679]
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Hope this helps >.<
6 0
3 years ago
Read 2 more answers
Justin is 2 years older than one third Marcella's age. Aimee is four years younger than 2 times Justin's age. Define a variable
Mademuasel [1]
Apologies if it’s dark but here’s the work for your question. If you need an explanation, let me know.

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