So, for the semi circle, we need to find the area of a circle then divide it by 2.
pi times r squared
is the area of a circle with the radius of 4
(I'm going to use 3.14 as pi)
So 3.14 times 16 is 50.24
Divide that by 2 and we get 25.12
For the rectangle at the bottom. We know that the radius is four, so we can cut off 4ft from the height, leaving us with 8.
8 times 8 is 64.
To find the area of the whole figure, we add 64 and 25.12 together, getting 89.12
So the area is 89.12 feet squared.
Any questions?
Answer:
∠RST = ∠SRU because they are alternate angles.
Step-by-step explanation:
Hope it helps .
Answer:
SSS
Step-by-step explanation:
They are congruent because they have 3 same sides.
Answer:
(21.4, 18.6)
Step-by-step explanation:
Given that:
Mean (μ) = $20 per week
Standard deviation (σ) = $5
number of sample (n) = 49
Confidence level = 95% = 0.95
α = 1 - 0.95 = 0.05
from the probability table.
The margin of error (e) = 
Confidence interval = μ ± e = (μ + e, μ - e) = (20 + 1.4, 20 - 1.4) = (21.4, 18.6)
Answer:
1/2
Step-by-step explanation:
Just take any two coordinates, and use this fornula
Y2 - y1
-----------
X2 - x1
