It would be -6. -4-6 is -10
area of a circle is PI x r^2
2 = d/2 = 5.4/2 = 2.7 cm
using 3.14 for PI
3.14 x 2.7^2 = 22.89 square inches
360 degree in a circle, shaded area is 180 degree, which is 50%
so 22.89 x .5 = 11.45 cm^2
Easy if you know the formula
all this means is that your x value is a, and when it is, will give you the value 26.
f(a) = 6a - 4 = 26
6a = 30
a = 5
To solve this problem you must apply the proccedure shown below:
1. You have that Darren can get to work in
and <span>with the traffic and lights, he can average </span>
<span>.Therefore, you must apply the formula for calculate the distance, which is:
</span>
<span>
Where </span>
<span> is the speed and </span>
<span> is the time.
2. The time in hours is:
</span>
<span>
3. Substituying values, you have:
</span>
<span>
The answer is:</span>