Answer:
3.14 or
Step-by-step explanation:
First, we need to know the equation for the area of a circle:
= Area of a circle
We can plug in the radius and then solve.
It can be worked out like this:
A = pi r^2
A = pi (2)^2
A = pi (4)
But since the figure in the picture is cut into 1/4 of the size of a full circle, we need to divide what we got by 4. We know the figure is 1/4 of a circle because of the right angle marker in the center. That means it measure 90 degrees, which is 1/4 of 360 degrees, the measure of a full circle.
A = pi (4)
———— (this is supposed to be a division sign)
4
This will cause the 4 on the top and the 4 on the bottom to cancel out, so we are left with only pi.
Your question says you can either use pi or 3.14 for pi, so that means your answer is either 3.14 or pi. By the way, when I use pi I mean the symbol:
It's just simpler to type out pi instead of using the equation builder each time.
Assume the triangle has 3 sides with length of 5, 6, and sqrt(11)
So cotθ = 1/tan<span>θ = 1/(5/sqrt(11)) = sqrt(11)/5</span>
Answer:
x={-3/2,-13/2}
Step-by-step explanation:
3-2|x+4|+3=1
-2|x+4|+6=1
-2|x+4|=-5
|x+4|=5/2
x+4=5/2
x+4=-5/2
x=5/2-4
x=-3/2
x=-5/2-4
x=-13/2
Answer:
A signal from the transmitter will be picked up through out the 57.38 mile drive
Step-by-step explanation:
The radius of the transmitter = 63 miles
Therefore, since both the location 38 miles north and the location 43 miles east of the transmitter are within the the radius, the transmission of the transmitter will be received through out the straight line journey
The length of the travel path is given by;
Distance from 38 miles north of the transmitter to distance of 43 miles east of transmitter = 
.
Answer:
see explanation
Step-by-step explanation:
given a quadratic in standard form : y = ax² + bx + c : a ≠ 0
Consider the coefficient of the x² term
• If a > 0 then vertex is a minimum and graph opens up
• If a < 0 then vertex is a maximum and graph opens down
f(x) = x² - 5x - 7 is in standard form
with a = 1, b = - 5 and c = - 7
Since a > 0 then vertex is a minimum and graph opens up
