Step-by-step explanation:
I entered it in and it was .9993319736
3 yrs ago:
Alice - x
Jane - 3x
Fast forward 2 years... 1 year ago:
Sum of their ages = 62
Equation to solve: x + 3x = 62
4x = 62
----- -----
4 4
x = 15.5
From this, we can deterime that Alice is 15 1/2 years old.
Then, plug in 15.5 for x in 3x to find Jane's age.
15.5 × 3 = 46.5
From this, we can determine that Jane is 46 1/2 years old.
I hope this helps you to understand this problem better.
Answer:
The answer is choices D.
Step-by-step explanation:
hope this helps
Answer:
4/45
Step-by-step explanation:
Multiply the top by the top, and the bottom by the bottom:

4/45 cannot be reduced down anymore, therefore that is your answer.
<em>Hope this helps!!</em>
<em>- Kay :)</em>
for 2a, use the theorems of geometry and such to look at the area of the square as 16 squares total, then use the lengths and Sim/cos rule for the triangular area, then subtract and you have you shaded area.