The circumference of the circle is 40π. Hope it help!
Answer:
Yes, it could be a probability
Step-by-step explanation:
The probability of an event HAS to be between the numbers 0 and 1. Not less than 0, not greater than 1. The number 0.12 is between 0 and 1, thus, making it a valid probability.
The correct answer is -5 ≤ x ≤ 7
Endpoints are included, and the x-values are between -5 and 7.
Please mark my answers as the Brainliest if my explanations were helpful :)
Answer:
Step-by-step explanation:
Discussion
i has to appear somewhere. That lets D and B out. They are both wrong.
C has only one i. It can't be right either. You need 2 i-s which will multiply to +1 when squared. That leaves you with a.
The way a is written, it can't be the answer either. For one thing, that 2 makes the answer question at best.
I would say there is no correct answer. Could you check the question? Also it would be a good idea to ask your instructor how this works, in case I'm wrong.
(A) Find the value of x. Round to the nearest tenth of a degree<span>
Given that the distance of the ground is 9ft.
Length of the plank is 41 ft
In order to get the angle formed between the ground and the foot of the plank,
cos (theta) = ground / plank
cos (theta) = 9 / 41
</span><span>cos (theta) = 0.21951...
</span>theta = cos^-1(<span>0.21951...)
</span><span>theta = 77.3 degrees
</span><span>(b) Find the height above the ground where the plank touches the wall. Round to the nearest tenth of a foot.
</span><span>
Height = square root (plank^2 - ground^2)
Height = square root (41^2 - 8^2)
</span><span>Height = square root (1600)
</span><span>Height = 40
(A) 77.1 Degrees
(B) 40 feet</span>
