The answer is 3.46 meters
You can get the answer by using the pythagorean theorem, since the ladder and the wall form a right triangle.
c^2 = a^2 + b^2
4^2 = 2^2 + b^2
16 = 4 + b^2
12 = b^2
b = sqrt(12) or 3.46 meters

The Angle formed by an arc on the centre of the circle is double the angle made by the same arc on the circumference of the circle.
So,

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The second one is the correct equation. The constant to the right should be the diameter squared, while the numbers inside the parentheses should be the opposite.
Answer:
$4000
Step-by-step explanation:
Let B represent amount invested in account 'b'.
We have been given that an amount of $12,000 that Boris invested in fund a returned a 6% profit.
So the profit earned from fund 'a' would be
.
We are also told that the amount that he invested in fund b returned at 2% profit. So the profit earned from fund 'b' would be
.
Further, both funds together returned a 5%. We can represent this information as:

Now, we will equate profit earned from account 'a' and 'b' with profit earned from both accounts as:









Therefore, Jason invested $4000 in fund 'b'.