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Elis [28]
3 years ago
13

I need a teachers help! are there any teachers here? I really need help!

Mathematics
1 answer:
bearhunter [10]3 years ago
7 0

Answer:

Not me sry

Step-by-step explanation:

TNX for the free points tho

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What is the solution of the system?
Kryger [21]
Greetings!

Solve the System, using Elimination:
\left \{ {{4x+2y=18} \atop {2x+3y=15}} \right.

Multiply Equation #2 by 2:
\left \{ {{4x+2y=18} \atop {2(2x+3y)=2(15)}} \right.

\left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.

Eliminate variable x:
-\frac{ \left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.}{0x-4y=-12}

4y=-12

Divide both sides by 4:
\frac{4y}{4}= \frac{12}{4}

y=3

Input this value into one of the Equations: 
4x+2y=18

4x+2(3)=18

Simplify:
4x+6=18

(4x+6)+(-6)=(18)+(-6)

4x=12

Divide both sides by 4.
\frac{4x}{4}= \frac{12}{4}

x=3

The Solution to this System (The Point of Intersection):
\boxed{(3,3)}

I hope this helped!
-Benjamin
7 0
3 years ago
1. Which three lengths could be the lengths
Nadya [2.5K]

Answer:

B.

Step-by-step explanation:

A- 12 + 5 = 17 (Cannot be the same)

B- 10 + 15 = 25 (More than the 3rd side) ✅

C- 9 + 11 = 20 (Cannot be less than the 3rd side)

D- 7 + 6 = 13 (Cannot be less than the 3rd side)

5 0
3 years ago
Does anyone know how to do this?
dezoksy [38]
It is 45 because angle EBC is congruent to CDE (x) because of a rule called alternate angles. so x= 45°
8 0
3 years ago
Read 2 more answers
Question 9 of 10<br> Which vector is the sum of vectors ä and ?<br> Б
KonstantinChe [14]

Answer:

its c

Step-by-step explanation:

3 0
3 years ago
What is the property that justifies the statment 16m=160, then m=10
Ann [662]
.) TRAnsitive; think like aTRAin. the cars are connected... 
<span>N is connected to X and X is connected to C, so N is connected to C </span>
<span>2)reflexive; think refection, like a mirror, </span>
<span>3)substitution; substituted 40 for mB </span>
<span>4)division prop of eq; both sides of equation divided by 4 </span>
<span>5)AB = 25 - CD; subtracted CD from both sides</span>
8 0
3 years ago
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