Answer:
15
Step-by-step explanation:
5(2)(3)-2(2)+13+7(2)-6(2)(3)-4(2)+(2)(3)
30-4+13+14-36-8+6
15
Answer:
The concentration of hydrogen ions in moles per liter (M) is 
Step-by-step explanation:
As we know
The hydrogen ion concentration of any solution at pH is given by

Substituting the given values in above equation, we get -
mol/l
The concentration of hydrogen ions in moles per liter (M) is 
Answer:
a triangle that is rotated about a given point.
Step-by-step explanation:
<span>To determine whether (−1,4) is a solution to the equation 3x+8y=29, substitute ...-1... for x and ...4... and for y.
In a pair of values like (-1, 4), the first coordinate, or entry, occupied by -1 always represents x.
Similarly, the second coordinate occupied by 4 represents y.
Answer: </span>substitute ...-1... for x and ...4... and for y.
Answer:

Step-by-step explanation:
Given that,
An airthmetic sequence,
261,256,251
We need to find the 50th term.
We have,
first term, a = 261
common difference = 256-261 = -5
The nth term of the AP is given by :

So, the 50th term of the sequence is 16.