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emily0259
14.01.2021 •
Mathematics
The terminal side of θ passes through the point (10, 6). What is the exact value of cos θ in simplified form?
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Ответ:
Step-by-step explanation:
The formula for cos θ is a/r. A is the first number (10) and b is the second number (6). R is the hypoteneuse which can be found through r =
.
In the equation you'd write that as r =
which can be simplified to
.
You end up with
and you simplify this by doing
, ending with the result of
.
(I also got this answer right on the test.)
Ответ:
24 girls
Step-by-step explanation:
Ratio girls to boys: 4:7
The ratio involved a total of 11 people.
There are 66 students in fifth grade, and there is a 4:7 girl to boy ratio.
66/11 = 6
Girls: 6 x 4 = 24
Boys: 6 x 7 = 42
The total of girls to boys should be equal to 66.
24+42=66