In every triangle, the sum of the interior angles is 180°. The sum of the angles of this triangle is
and we want this sum to be 180, so we can write the following equation:
subtract 12 from both sides:
divide both sides by 3:
Now we can plug this value for x in the expressions for the two unknown angle to get their value:
5/21
3/28
4/29
Answer: The probability that a student chosen at random has a brand X mobile phone given that he has a brand Y mobile phone is 4/29.
Step-by-step explanation:
Since, the total number of students, n(s) = 1,000
The number of students who have X mobile phones, n(X) = 420,
And, number of students who have Y mobile phones, n(Y) = 580,
Thus, the probability of the student that has Y phones,
While, the number of students who have both phones, n(X∩Y) = 80
Thus, the probability of the student who has both phones,
Hence, the probability that a student chosen at random has a brand X mobile phone given that he has a brand Y mobile phone.
Hence, the required probability is 4/29.
Answer:
Slope = 3/2, or 1.5
Step-by-step explanation:
Pick out the lattice points ( points that intersect the graph markings)
I see 2 points, ( 3, 1), and ( 5, 4)
Slope = Δy/xΔ = 4 - 1/5 - 3 = 3/2
Slope is 3/2, or 1.5
-Chetan K
Answer:
It is a function because there is one y value for any x value, and it passes the VERTICAL line test. Horizontal line test is for checking if it is one-to-one, which will tell you if the inverse is a function or not.