Answer:
x= -3
Step-by-step explanation:
20=14-2x
-14 -14
6 = -2x
÷-2 ÷-2
-3 =x
Answer:
Step-by-step explanation:
If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because a function has only one output value for each input value.
Example:
Answer:
lol
Step-by-step explanation:
I'm the first person!
LOL it's been so long since nobody answered this question lol
6n - 3(2n-5)
mutiply the bracket by -3
(-3)(2n)= -6n
(-3)(-5)= 15
6n-6n+15
0+15
answer:
15
Answer: A. (5; 0), B. (0; - 5), C. (-5; 0), D. (0; 5).
Step-by-step explanation:
A. (5; _) <em>[x = 5; y - ?]</em>
x² + y² = 25
5² + y² = 25
25 + y² = 25
25 + y² - 25 = 25 - 25
y² = 0
y = 0
A. (5; 0)
B. (_; -5) <em>[x - ?; y = -5]</em>
x² + y² = 25
x² + (- 5)² = 25
x² + 25 = 25
x² + 25 = 25
x² + 25 - 25 = 25 - 25
x² = 0
x = 0
B. (0; - 5)
C. (_; 0) <em>[x - ?; y = 0]</em>
x² + y² = 25
x² + 0² = 25
x² + 0 = 25
x² = 25
x = ± √25 = ± 5
C. (-5; 0) or (5; 0)
<em>Point A has coordinates (5; 0), which means that</em>
<em>point C has coordinates (-5; 0).</em>
D. (0; _) <em>[x = 0; y - ?]</em>
x² + y² = 25
0² + y² = 25
0 + y² = 25
y² = 25
y = ± √25 = ± 5
D. (0; - 5) or (0; 5)
<em>Point B has coordinates (0; -5), which means that</em>
<em>point D has coordinates (0; 5).</em>