Answer:
Na+ and Cl- should be examples of an ion.
<Hope I answered your question>
So, 260 degrees is in the 3rd quadrant, only 10 degrees away from being straight down at 270 degrees....if you have a xy axis, and draw a line segment from the origin into the 3rd quadrant, then at the endpoint of that segment, draw back up to the x-axis, your reference angle is the angle that the line segment makes with the x-axis (in this case, the negative portion of the x-axis), which is 80 degrees....since 260 degrees is 80 degrees past 180.
So your answer is 80 degrees.
Hope this helps,
Brian
Answer:
11 and 6
Step-by-step explanation:
11-6=5 <--- difference
11+6=17 <--- sum
Answer:
84
Step-by-step explanation:
Let's say Nick gets amount N, Angad amount A, and June amount J.
Here's what we know:
A+N+J=140
A=2*N
N=3*J.
Let's plug these values in.
N=3*J, so A+N+J=140 can now be A+3*J+J=140.
A=2*N, and N=3*J, so A=2*3*J=6*J. Then, A+3*J+J=140 is now 6*J+3*J+J=140, so 10*J=140 and J=14. N = 3*J=42 and A=2*N=84. Checking this, 14+42+84=140, so we are good to go!
Answer:
d = 
Step-by-step explanation:
The nth term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Given a₉ = 16 , then
- 12 + 8d = 16 ( add 12 to both sides )
8d = 28 ( divide both sides by 8 )
d = 
=
