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iVinArrow [24]
3 years ago
12

sin x = -1/2, and the cos y = √3/2. if angle x is in the fourth quadrant and angle y is in the first quadrant, the value of cos(

x-y) is
Mathematics
2 answers:
Gnom [1K]3 years ago
7 0
X is 11pi/6 and y is pi/6. So cos(10pi/6) = cos(5pi/3)=1/2. 1/2 is the answer
skad [1K]3 years ago
5 0

Answer:

More info

Step-by-step explanation:

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Researchers wanted to determine if having a DVD player in the bedroom is associated with obesity. The researchers administered a
Mashutka [201]

Answer:

is c

Step-by-step explanation:

3 0
3 years ago
Select the gcf of these numbers. 25 · 5· 11 and 23· 52 · 7 a 2^2 · 3
White raven [17]
The greatest common factor of the numbers is that which is the fused factors of all the numbers without the repetition of the common factors present in the given.
                          25·5·11 = 5·5·5·11
                          23·52·7 =23·2·2·13·7
Since, there are no repeated factors, the answer would be,
                                        5·5·5·11·23·2·2·13·7
The answer unfortunately is not among the choices.
7 0
3 years ago
162 water bottles in 9 cases=
marishachu [46]
162/9 = 18 water bottles per case
5 0
3 years ago
Help me! I'm the most stupidest person ever!
vovangra [49]
Alright here's the breakdown:
your trying to find how many miles per day 
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 take the miles (290) and the days it took (5)
and 
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6 0
3 years ago
Read 2 more answers
In a sample of 77 children , the mean age as at which they first began to combine words was 16.51 months
astraxan [27]

Answer:

Mean age = 1271.27

Step-by-step explanation:

No of children = 77

The age at which children first began to combine words = 16.51 months

Mean age = No of children × age at which children first began to combine words

                = 77 × 16.51

                 = 1271.27

Mean age = 1271.27

7 0
3 years ago
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