Not sure what the measure of ____ is, can you specify?
62% because 200 silver coins out of 323 (total of all coins) is .619..., resulting in 62%
The equivalent expression to the given one is -sin(pi/6).
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Which expression is equivalent to the given one?</h3>
The given expression is:
sin(7pi/6)
Where the argument is in radians.
Remember that:
sin(a + b) = sin(a)*cos(b) + sin(b)*cos(a)
Now we can rewrite:
sin(7pi/6) = sin(pi + pi/6)
Then we can use the above relation to rewrite:
sin(pi + pi/6) = sin(pi)*cos( pi/6) + sin(pi/6)*cos(pi)
And we know that:
sin(pi) = 0
cos(pi) = -1
Then we can write:
sin(7pi/6) = - sin(pi/6)
If you want to learn more about the sine function:
brainly.com/question/9565966
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ANSWER
The possible rational roots are:

EXPLANATION
According to the rational root theorem, the possible rational roots of the polynomial,
are all the possible factors of the constant term divided by all the possible factors of the coefficient of the highest degree of the polynomial.
Therefore we examine the numerator and denominator of the options provided to see if they are factors of 10 and 4 respectively.
For
, we can see that 1 is a factor of 10 and 2 is a factor of 4, hence it is a possible rational root.
The same thing applies to
also.
As for
, 2 is a factor of 10 but 5 is not a factor of 2, hence it is not a possible rational root.
Answer:20
Step-by-step explanation: Cause 60-20=40