Answer:
8
Step-by-step explanation:
A2+B2=C2
A2+15squared=17squared
A2+225=289
289-225=64
A2=64
64 squared is 8
A. Create a segment EF between two points.
Step-by-step explanation:
<em>2</em><em>+</em><em>1</em><em>9</em><em>=</em><em>7x</em>
<em>2</em><em>1</em><em>=</em><em>7x</em>
<em>21</em><em>÷</em><em>7</em><em>=</em><em>7x</em><em>÷</em><em>7</em>
<em>3</em><em>=</em><em>x</em>
<em>.</em><em>.</em>
Answer:
Step-by-step explanation:
the expression we have is:
![-\frac{1}{12} x-\frac{1}{3}](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B12%7D%20x-%5Cfrac%7B1%7D%7B3%7D)
To find an equivalent expression, it would be helpful to express 1/3 so that it has a 12 in the denominator:
![\frac{1}{3}=\frac{4}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D%3D%5Cfrac%7B4%7D%7B12%7D)
so we substitute this:
![-\frac{1}{12} x-\frac{4}{12}](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B12%7D%20x-%5Cfrac%7B4%7D%7B12%7D)
and now we have 1/12 in both terms :
![-\frac{1}{12}x-\frac{1*4}{12}](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B12%7Dx-%5Cfrac%7B1%2A4%7D%7B12%7D)
so we can factor it (we take it out of each term: in the first we are left with -x and in the second with -4):
the equivalent expression is: