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harina [27]
3 years ago
7

Simplify the identity: tan cos/sin

Mathematics
1 answer:
xxMikexx [17]3 years ago
4 0
I am going to simplify the top before simplifying the rest.

tan = sin/cos, so tan * cos simplifies down to sin in the numerator. which leaves sin/sin which equals 1.

to make a long story short the answer is 1
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a bag contains 20 pink marbles and 12 yellow marbles. you choose a marble at random. what is the probability of selecting a pink
Sati [7]
So the total amount of marbles is: 20+12=32
there are 20 pink marbles
20/32 = 10/16 = 5/8 (simplified)
4 0
3 years ago
Find the probability that the mean annual preciptiation will be between 32 and 34 inches. variable is normally distributed
liq [111]
Supposing, for the sake of illustration, that the mean is 31.2 and the std. dev. is 1.9.

This probability can be calculated by finding z-scores and their corresponding areas under the std. normal curve.  
                                                                     34 in - 31.2 in
The area under this curve to the left of z = -------------------- = 1.47 (for 34 in)
                                                                           1.9
                                                                      32 in - 31.2 in
and that to the left of 32 in   is               z = ---------------------- = 0.421
                                                                             1.9

Know how to use a table of z-scores to find these two areas?  If not, let me know and I'll go over that with you.


My TI-83 calculator provided the following result:

normalcdf(32, 34, 31.2, 1.9) = 0.267  (answer to this sample problem)

5 0
3 years ago
4 1/3 x 4 2/5 simplify
Artemon [7]

Answer:

I am pretty sure that the answer is 19 1/15! Hope this helps!!!!!!

3 0
3 years ago
What would be 1/2÷10 this is dumb i know but its so annoying!!!​
Veseljchak [2.6K]

Answer: 1/20 or 0.05

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Select the correct answer.
olasank [31]

Answer:

The answer is c

Step-by-step explanation:  

Theater 2 is less than the mean absolute deviation of the data for theater.  

I hope this helps

6 0
3 years ago
Read 2 more answers
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