Answer:
Probability that, of the questions studied, all three were the test questions selected by the professor is 0.05
Step-by-step explanation:
Total question gives by teacher = 6
A student has time to study for only three of these six questions.
We are supposed to find the probability that, of the questions studied, all three were the test questions selected by the professor?
So, Probability that, of the questions studied, all three were the test questions selected by the professor =
=
=
Hence Probability that, of the questions studied, all three were the test questions selected by the professor is 0.05
Answer:
16 inches is area
Step-by-step explanation:
Answer:
cos A = 12/13
Step-by-step explanation:
TanC = AB/BC = 2.4
therefore
BC = AB/2.4
Pythagorean theorem
AC = √(AB² + (AB/2.4)²) = (13/12)AB
Cos A = AB/AC = AB / (13/12)AB = 12/13
Answer:
10
Step-by-step explanation:
523=4/3 pi r^3
124.86=r^3
5=r
d=2r
d=10
The sum of angles in a triangle is 180 degree
First angle + second angle + third angle = 180
From the given diagram , AC = BC
The angle opposite to the sides are also equal
So angle A and angle B are equal
Angle A = 50 so angle B = 50 degree
angle B = 2x = 50
Divide both sides by 2
So x= 25 degree
Angle A + angle B + angle C = 180
50 + 50 + 5y + 10 = 180
100 + y + 10 = 180
110 + 5y = 180
Subtract 110 on both sides
5y = 70
now divide both sides by 5
The value of y = 14