Answer:
20.5 and 21.5
Step-by-step explanation:
It says 2 significant figures so the least it can possibly be is 0.5 less and the most it can be is 0.5 more as if it was, lets say 20.4 it would round down to 20 not 21.
Answer:
3rd option, (3,6) (5,10) (8,1) (14,1)
Step-by-step explanation:
The measure of angle θ = 7pi/6. To convert this to degrees, substitute pi with 180 degrees. Pi is always equal to 180 degrees.
θ becomes: 7 x 180/6
Therefore, θ = 210 degrees.
And, to solve for sin θ, you can directly input sin (210) in the calculator.
Thus, sin θ = sin (210) = -0.5 or -1/2
Answer:
Given the value of pi (π) = 3.14
Given the speed of Radius = 0.10 mph
Given the total area = 11000 square miles.
To find = the time.
Step-by-step explanation:
Since the oil spill in the ocean and spread in a circular pattern. So the total the spilled area = 11000 square miles.
The speed of the radius at which is increase = 0.10 mph
Given the value of pi (π) = 3.14
Now we have to find the total hours consumed to cover the area or the spilled over the area.
First, find the radius and this radius will be the distance. Then divide the distance with speed to find the time taken.
Area = 2 π r^2
11000 = 2 ×3.14 × r^2
r = 41.85 m
Now find the time.
Time taken to spill the oil = 41.85 / 0.10 = 418.52 hours
Answer:
.2
Step-by-step explanation: