Answer:
c = 25
Step-by-step explanation:
A (-6, 5), B (-2, 4), <em>C (-2, 5) </em>
Form a triangle by adding a new point to the graph.
*in this case it is coordinate C
From A to C there are 4 units.
From B to C there are 9 units
Next you need to use the pythagorean theorem to find the length of A to B
Now use the lengths you have to find the missing length.
The present age of Jane is 45 years old and present age of her sister is 9 years old
<em><u>Solution:</u></em>
Let the present age of Jane be "x"
Let the present age of her sister be "y"
<em><u>Jane is 5 times older than her sister</u></em>
present age of Jane = 5(present age of her sister)
x = 5y ---------- eqn 1
<em><u>In 3 years, Jane’s sister will be 1/4 her age</u></em>
Age of sister after 3 years = 3 + y
Age of jane after 3 years = 3 + x
Age of sister after 3 years = 1/4(age of jane after 3 years)
Substitute eqn 1 in above equation
Substitute y = 9 in eqn 1
x = 5(9)
x = 45
Thus present age of Jane is 45 years old and present age of her sister is 9 years old