Answer:
Step-by-step explanation:
Shape Formula Sum Interior Angles
3 sided polygon (triangle) (3−2)⋅180 180∘
4 sided polygon (quadrilateral) (4−2)⋅180 360∘
6 sided polygon (hexagon) (6−2)⋅180 720∘
Answer:
A=30
Step-by-step explanation:
We know through the Angle Sum Property of A Triangle that
all its angles add up to 180 degrees
Hence, A + (a+b) +B= 180
A+100+50=180
A+150=180
A=30
The probability that the student gets between 1 and 6, exclusive, questions correct will be 0.7872...
<em><u>Explanation</u></em>
If the probability of success is
, then the probability of
successes in
trials will be......

Here, the quiz has total 12 questions and each question has 4 answer choices. So,
and 
The student gets between 1 and 6, exclusive, questions correct. It means <u>there can be 2 or 3 or 4 or 5 questions as correct</u>. So....
The probability of 2 or 3 or 4 or 5 questions correct will be:

Answer:
27
Step-by-step explanation:
Let the number to find out be 'x'
Therefore,
according to the condition given question, we get the equation as

Now,
squaring both the sides, we get
2x - 5 = 49
on adding 5 both sides, we get
2x - 5 + 5 = 49 + 5
or
2x = 54
or
x =
or
x = 27
Hence, the number is 27