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Brilliant_brown [7]
3 years ago
13

How many solutions does this system have -3x+6y=10 -3x+6y= -4

Mathematics
2 answers:
Lana71 [14]3 years ago
3 0
0 because if u subtract the equations you get 0x + 0y = 14 which is not possible
Dennis_Churaev [7]3 years ago
3 0
-3x+6y=-4
-3x+6y=10

0x+0y=14

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Annette [7]
Meters and seconds.

Most short distance races involve meters and the timing is usually in seconds. She can use the information and convert it to miles per hour.
6 0
3 years ago
6 x 2 7 x 2 8 x 2 3 x 3
Semenov [28]

6 \times 27 \times 28 \times 23 \times 3 = 312984

6 0
2 years ago
GET BRAINLIEST FOR THE CORRECT ANSWER AND EXPLANATION!
Tresset [83]

Interpreting the inequality, it is found that the correct option is given by F.

------------------

  • The first equation is of the line.
  • The equal sign is present in the inequality, which means that the line is not dashed, which removes option G.

In standard form, the equation of the line is:

x + 2y = 6

2y = 6 - x

y = -0.5x + 2

Thus it is a decreasing line, which removes options J.

  • We are interested in the region on the plane below the line, that is, less than the line, which removes option H.

------------------

  • As for the second equation, the normalized equation is:

3x^2 + 3y^2 = 12

3(x^2 + y^2) = 12

x^2 + y^2 = 4

  • Thus, a circle centered at the origin and with radius 2.
  • Now, we have to check if the line x + 2y - 6 = 0, with coefficients a = 1, b = 2, c = -6, intersects the circle, of centre x = 0, y = 0
  • First, we find the following distance:

d = \sqrt{\frac{|ax + by + c|}{a^2 + b^2}}

  • Considering the coefficients of the line and the center of the circle.

d = \sqrt{\frac{|1(0) + 2(0) - 6|}{1^2 + 2^2}} = \sqrt{\frac{6}{5}} = 1.1

  • This distance is less than the radius, thus, the line intersects the circle, which removes option K, and states that the correct option is given by F.

A similar problem is given at brainly.com/question/16505684

3 0
3 years ago
What is 10c+9-7c.....?
Vika [28.1K]

Answer:

17c + 9 = 10c + 9 - 7c

COMBINE LIKE TERMS

10c + 7c = 17c

9 IS NOT A LIKE TERM, SO WE LEAVE IT ALONE

7 0
2 years ago
Which inequality is true?
DENIUS [597]

Answer:

A. 7pi>21

Step-by-step explanation:

7*pi=21.99

21.99>21

5 0
1 year ago
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