Step-by-step explanation:
12 to the 2nd power=144
15 to the 2nd power =225
225-144=81
square root of 81 is 9
Answer:
w=66
Step-by-step explanation:
w-19=47
Hey There!
So what we want to do is get the variable on one side (w) and the constant on the other
so essentially what I am saying is that we have to get rid of the -19 and to do that we have to add 19
but remember whatever we do to one side we have to do to the other
-19+19 cancels out
47+19=66
therefore
w=66
As points, x-intercepts take the form

, so to find the intercepts we can set

and solve for

.

From the first equation alone, we already know that

is a solution, which means one intercept is

.
The second equation gives

so that the second intercept occurs at

.
So if

and

, we have

, giving C as the answer.
16 divided by 2 4/5
change 2 4/5 to an improper fraction
2 4/5 = (5*2+4)/5 = 14/5
16 divided by 14/5
copy dot flip
16 * 5/14
rearrange to make the math easier
16/14 *5
8/7 *5
40/7
7 goes into 40 5 times with 5 left over
5 5/7