Answer:
C.
Step-by-step explanation:
We have been given a triangle. We are asked to find the measure of angle Z using Law of cosines.
Law of cosines: , where, a, b and c are sides opposite to angles A, B and C respectively.
Upon substituting our given values in law of cosines, we will get:
Now, we will use inverse cosine or arc-cos to solve for angle Z as:
Therefore, the measure of angle Z is approximately 51 degrees.
Answer:
D. 151 cu. in.
Step-by-step explanation:
Given: Cone; Radius = 4 in, Height = 9 in.
To find: The volume of the specified cone
Formula:
Solution: A cone is a solid that has a circular base and a single vertex. To calculate its volume multiply the base area (area of a circle: π × r²) by height and by : volume = ( ) × π × r² × h.
2:3
it was originally 8:12, but it has to be simplified. 2/3 can also work as an answer.
The answer is D. Alternate Interior
I am sorry I cannot solve this problem.
However, I have a tip: if you are gonna give
problems as hard as these, you might wanna offer more than just 5 points. Or you can just waste your points and get a zillion non-helpful answers like this one.