Answer:
Area = 105.133
Step-by-step explanation:
First you need to find the area of both shapes.
The area of a rectangle is length x width
A= 10*8
So the area of the rectangle is 80ft^2
The area of a circle is πr^2
Area = π4^2, but it's only a half circle so you need to divide that answer by two.
Area = π4^2 = 50.265
Then divide by 2 because it's a half circle
50.265/2= 25.132ft^2
Lastly, you need to add both areas
80+25.132= 105.133ft^2
So first u fill in 2/3 of all the circles then u can count that so the answer is 10/3 which is 3 and 1/3
<span>v = 45 km/hr
u = 72 km/hr
Can't sketch the graph, but can describe it.
The Y-axis will be the distance. At the origin it will be 0, and at the highest point it will have the value of 120. The X-axis will be time in minutes. At the origin it will be 0 and at the rightmost point, it will be 160. The graph will consist of 3 line segments. They are
1. A segment from (0,0) to (80,60)
2. A segment from (80,60) to (110,60)
3. A segment from (110,60) to (160,120)
The motorist originally intended on driving for 2 2/3 hours to travel 120 km. So divide the distance by the time to get the original intended speed.
120 km / 8/3 = 120 km * 3/8 = 360/8 = 45 km/hr
After traveling for 80 minutes (half of the original time allowed), the motorist should be half of the way to the destination, or 120/2 = 60km. Let's verify that.
45 * 4/3 = 180/3 = 60 km.
So we have a good cross check that our initial speed was correct. v = 45 km/hr
Now having spent 30 minutes fixing the problem, out motorist now has 160-80-30 = 50 minutes available to travel 60 km. So let's divide the distance by time:
60 / 5/6 = 60 * 6/5 = 360/5 = 72 km/hr
So the 2nd leg of the trip was at a speed of 72 km/hr</span>
Answer:
last option
Step-by-step explanation:
(x-h)²+(y-k)²=r²
(x--7)²+(y-4)²=5²
(x+7)²+(y-4)²=25
Answer:
About 384 miles (correct me if I'm wrong but I think that's the answer)
