Which angle corresponds to 1/6 of a circle?
2 answers:
Answer:
of a circle makes 60° angle.
Step-by-step explanation:
There are 360° in one full rotation or we can say that one circle has 360 degrees.
If a circle has 360°, of a circle is equal to
× 360 = 60°
If you divide a circle into 6 equal parts each would be of 60°.
= 60 + 60 + 60 + 60 + 60 + 60 = 360
of a circle makes 60° angle.
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Let the unknown number be .
Then the opposite of this unknown number will be .
It is given to us in the question that when this unknown number, is increased by 9, or in other words when 9 is added to this unknown number,
, then this becomes 5 times it's opposite, which is
.
Thus, from the given condition in the question, the equation we get is as:
We will solve this by isolating as:
Thus the required number is -1.5
Answer:
b) 24
Step-by-step explanation:
We solve building the Venn's diagram of these sets.
We have that n(S) is the number of succesful students in a classroom.
n(F) is the number of freshmen student in that classroom.
We have that:
In which n(s) are those who are succeful but not freshmen and are those who are succesful and freshmen.
By the same logic, we also have that:
The union is:
In which
So
So the correct answer is:
b) 24