<h2>
Answer:</h2>
<u>Area of semi circle = πr²/2</u>
Area = 22 × 2 × 2/7 × 2
Area = 44/7ft².
An equation for water level in june for pensacola as a function of time (t) is f(t) = 5 cos pi/6 t + 7.
Which equation of cos show period amplitude ?
The equation given below show aplitude and period
![y = A cos bx + c](https://tex.z-dn.net/?f=y%20%3D%20A%20cos%20bx%20%2B%20c)
where A = amplitude,
b = 2 pi/Period,
Period = 12 hrs,
c = midline,
x = t and y = f(t)
We have to find the amplitude
<h3>What is the formula for the amplitude?</h3>
![A = 1/2 (Xmax - Xmin)](https://tex.z-dn.net/?f=A%20%3D%201%2F2%20%28Xmax%20-%20Xmin%29)
![12 - 2 / 2 = 10/2 = 5](https://tex.z-dn.net/?f=12%20-%202%20%2F%202%20%3D%2010%2F2%20%3D%205)
![b = 2 pi / 12 = pi/6](https://tex.z-dn.net/?f=b%20%3D%202%20pi%20%2F%2012%20%3D%20pi%2F6)
![c = 1/2 (Xmax + Xmin)](https://tex.z-dn.net/?f=c%20%3D%201%2F2%20%28Xmax%20%2B%20Xmin%29)
![12+2/2 = 7](https://tex.z-dn.net/?f=12%2B2%2F2%20%3D%207)
Therefore, the an equation for water level in june for pensacola as a function of time (t)
![f(t) = 5 cos pi/6 t + 7](https://tex.z-dn.net/?f=f%28t%29%20%3D%205%20cos%20pi%2F6%20t%20%2B%207)
To learn more about the function of time visit:
brainly.com/question/24872445
Answer:
1. 78cm^2
2. 200 ft^2
Step-by-step explanation:
1. i always cut these complex shapes into simpler ones (in this case a rectangle and a triangle)
the rectangles area is 6*8 or 48 and the triangles area is (10*6)/2 or 30 you then add the two areas to get the area for the whole shape 48+30=78
2. once again you're going to break this shape up into the individual rooms and then add them together the garage is a 4*6 room (24) the bedroom is a 8*4 room (32) the living room is a 10*10 room (100) the kitchens a 6*6 room (36) and the bathroom is a 4*2 room (8) you then add all these together
24+32+100+36+8=200
Answer:
B. Not enough information.
Step-by-step explanation:
We are given that all three angles of ∆DEF is congruent to all the three corresponding angles of ∆XYZ. However, this is is not enough to prove that they are both congruent to each other. There's no information about any of tge side length.
AAA is not a criterion that proves two triangles are congruent.
Therefore, we will conclude that there is not enough information.
The measurement of ∠KNL is 102°
First, you must set up an equation to find x.
![5x+2=[3(x+14)](https://tex.z-dn.net/?f=5x%2B2%3D%5B3%28x%2B14%29)
Then, you must simplify both sides of the equation.
![5x+2=3x+42](https://tex.z-dn.net/?f=5x%2B2%3D3x%2B42)
Next, subtract 3x on both sides.
![2x+2=42](https://tex.z-dn.net/?f=2x%2B2%3D42)
Then, subtract 2 on each side.
![2x=40](https://tex.z-dn.net/?f=2x%3D40)
Next, divide 2 on each side.
![x=20](https://tex.z-dn.net/?f=x%3D20)
Now that we have the value of x, we can substitute it in for angle KNL.
![[3(20+14)]](https://tex.z-dn.net/?f=%5B3%2820%2B14%29%5D)
![[3(34)]](https://tex.z-dn.net/?f=%5B3%2834%29%5D)
![102](https://tex.z-dn.net/?f=102)
°