Answer:
csc A = 13/5
Step-by-step explanation:
The sine of Angle A is opp/hyp, or 5/13.
The cosecant of Angle A is the inverse of this, or 13/5.
Answer:
(X + 9)(x -9)
Step-by-step explanation:
Subtraction of perfect squares:
The factors of a subtraction of perfect squares is given by:
What are the factors of x² - 81?
This can be written as:
So
This is what we call a Fibonacci sequence:
Notice that after the 1,1:
4th term =3 ==> 2+1
5th term =5 ==>3+2
6th term =8==> 5+3
7th term = 13==> 8+5
8th term =...........13+8 =21
9th term = ...........21+13 =34
10t=h term =........34+21 = 55
In short each number equal the sum of the 2 preceding number
Answer:
We see that the big triangle is an equilateral triangle, so all its angles will measure 60°. Therefore x° will be 60° - 30° = 30°, as he's the base angle of an isosceles triangle having the other base angle of 30°. y will simply be 180° - 60° (remembering that the sum of the angles in a triangle is always 180°).
