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PolarNik [594]
3 years ago
12

How can you tell if a point is a solution to a system of equations?

Mathematics
1 answer:
Anna35 [415]3 years ago
3 0

Answer: you have to substitute them into the equation

Step-by-step explanation:

example: x = 2y - 6

lets say you test 4/5 so it would be 4 = 2(5) - 6

this equals 4 = 10 - 6 which is true

so that is how you test to see if the equation is right

remember the first number goes to "x" and the second one goes to y

hope this helps mark me brainliest if you can

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Solve 9x2 + 6 = 12x
Oksana_A [137]

Step-by-step explanation:

9x² + 6 = 12x

3x² + 2 = 4x

3x² − 4x + 2 = 0

Use quadratic formula.

x = [ -b ± √(b² − 4ac) ] / 2a

x = [ -(-4) ± √((-4)² − 4(3)(2)) ] / 2(3)

x = [ 4 ± √(16 − 24) ] / 6

x = [ 4 ± √(-8) ] / 6

x = (4 ± 2i√2) / 6

x = (2 ± i√2) / 3

7 0
3 years ago
How many solutions does this system of equations have?<br> y = –2x + 3<br> y = –2x – 1
Nadusha1986 [10]

Answer:

Step-by-step explanation:

in y = mx + b form, the slope is in the m position and the y int is in the b position

y = -2x + 3.....slope is -2 and y int is 3

y = -2x - 1...slope is -2 and y int is - 1

same slope, different y int's....means parallel lines...NO SOLUTION

learn this...it helps

same slope, different y int's = no solution

different slopes, different y int's = 1 solution

same slope, same y int's = infinite solutions

6 0
3 years ago
Find the volume of the prism.
stiks02 [169]

Answer:

1760 cm³

Step-by-step explanation:

Volume For top "trapezoidal" prism : (14 * 4)/2 * 20 = 28 * 20 = 560

Volume for bottom rectangular prism = 6 x 10 x 20 = 60 x 20 = 1200

1200 + 560 = 1760 cm³

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

4 0
3 years ago
Find the slope and write an equation of the line which passes through the points.
Vikentia [17]

Answer:

a. y=x+1

b. x=-3

Step-by-step explanation:

a. slope= (6-4)/(5-3)=1

substitute (5,6) to y=1x+b; b=1

therefore, y=x+1

b. x=-3

5 0
3 years ago
What is 10 to the power of 0 ×17.55
Leni [432]
10^0 is 1. 1 time 17.55 is 17.55
5 0
3 years ago
Read 2 more answers
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