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Galina-37 [17]
3 years ago
8

1. Which description best describes the solution to the following system of equations?

Mathematics
2 answers:
12345 [234]3 years ago
8 0

question 3

Answer: D infinity many solutions

Step-by-step explanation:

when two lines overlap each other their values are the same therefore their always correct, so the answer is infinity many solutions

Alisiya [41]3 years ago
6 0
1. The best answer is A since a solution is where 2 lines intersect. Whether or not they intersect the x or y axis is completely irrelevant (so is whether they intersect the origin).

2. y=-x+5
-x+5=1/2x+2
-x+3=1/2x
3=3/2x
2=x

y=-(2)+5
y=3

Answer: (2,3)

3. It seems like the lines are completely on top of each other (coinciding) so there are infinitely many solutions.
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Which number sentence is true?
Artemon [7]

Answer:

yes

Step-by-step explanation:

but really nice to the world I'm happy for you because you is so buetiful

5 0
2 years ago
−6x^2−1 and x+9 help will mark brainliest.
Varvara68 [4.7K]

Answer:

-6x^2+x+8

Step-by-step explanation:

Add -1 and 9 because they are the only like terms

8 0
3 years ago
Bro I am so bad at math and I need help ;-;
serg [7]

Answer:

1. M > -7

2. y < -1

3. m < -12

4. k > -2

5. c > -9

Please let me know if you need me to explain these answers! :)

4 0
2 years ago
Identify the perimeter and area of a square with diagonal length 11in. Give your answer in simplest radical form. HELP PLEASE!!
Nataliya [291]

Answer:

  • Perimeter = 22*sqrt(2)
  • Area = 60.5 inches
  • D

Step-by-step explanation:

Remark

You need 2 facts.

  1. A square has 4 equal sides.
  2. It contains (by definition) 1 right angle but since we are not including and statement about parallel sides, it needs 4 right angles.

That means you can use the Pythagorean Theorem.

If one side of a square is a then the 1 after it is a as well.

Formula

  • a^2 + a^2 = c^2
  • 2a^2 = c^2

Givens

  • c = 11

Solution

  • 2a^2 = 11^2
  • 2a^2 = 121                    Divide by 2
  • a^2 = 121/2                  Take the square root of both sides
  • sqrt(a^2) = sqr(121/2)    
  • a = 11/sqrt(2)                Rationalize the denominator
  • a = 11 * sqrt(2)/[sqrt(2) * sqrt(2)]
  • a = 11 * sqrt(2) / 2

<em><u>Perimeter</u></em>

P = 4s

  • P = 4*11*sqrt(2)/2
  • P = 44*sqrt(2)/2
  • P = 22*sqrt(2)

You don't need the area. The answer is D

<em><u>Area</u></em>

  • Area = s^2
  • Area = (11*sqrt(2)/2 ) ^2
  • Area = 121 * 2 / 4
  • Area = 60.5


8 0
3 years ago
Need help with this please
lana [24]

Answer:n

geadeeeeeeeeeee

Step-by-step explanation:

4 0
2 years ago
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