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2 years ago

Which of the following is a solution to the following system of equations?

Mathematics

1 answer:

Anna35 [415]2 years ago

5 0

The Answer is A) ( 3 , 2 ).

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What is a-2÷5a+a+2÷5a

Andrej [43]

Answer:

=2a

Step-by-step explanation:

a-2/5a and a+2/5a cancel each other out and your left with a+a aka 2a

4 0

3 years ago

Please help Simplify the following expression.

Whitepunk [10]

Answer:

răspuns corect :a 2x -8y +3

Step-by-step explanation:

dami coroana te rog

4 0

2 years ago

Answers for both boxes please :)

NISA [10]

Answer: (-2;8)

$\left \{ {{3x+3y=18} \atop {2x+y=4}} \right. \\\\\left \{ {{x+y=6} \atop {2x+y=4}} \right. \\\\=>\left \{ {{x=4-6} \atop {x+y=6}} \right. \\\\\left \{ {{x=-2} \atop {x+y=6}} \right. \\\\\left \{ {{x=-2} \atop {y=6-(-2)=8}} \right.$

Step-by-step explanation:

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%28-5-%28-8%29%29x%5E%7B2%7D%20%2B%28-5-%28-7%29%29x%5E%7B2%7D" id="TexFormula1"

noname [10]

$\sqrt{x} (-5-(-8))x^{2} +(-5-(-7))x^{2} = 3.x^{2} \sqrt{x} +2x^{2} = x^{2} (3\sqrt{x} +1)$

ok done. Thank to me :>

4 0

2 years ago

Each year, a scientist measures the water level of a local lake. Negative numbers indicatethat the water level is below its hist

Mademuasel [1]

Answer:

-0.6, -0.41, 0.09, 0.39, 0.7

Step-by-step explanation:

Negative numbers: The higher the absolute number, the lower it is. For example, -2 is lower than -1.

Positive numbers: The lower the absolute number, the lower it is. For example, 1 is lower than 2.

In this question:

We have these following values:

0.7, 0.39, 0.09, -0.41, -0.6

Ranking from lowest to highest, it is:

-0.6, -0.41, 0.09, 0.39, 0.7

7 0

1 year ago