Recall the Trigonometric Ratio below:
For csc, sec and cot - they are reciprocal of sin,cos and tan.
What we know now is our hypotenuse, adjacent and opposite length.
- hypotenuse = 15
- opposite = 12
- adjacent = 9
Therefore,
As for the reciprocal of three trigonometric ratio. We just swap the numerator and denominator.
Answer
- sin = 12/15 —> 4/5
- cos = 9/15 —> 3/5
- tan = 12/9 —> 4/3
- csc = 15/12 —> 5/4
- sec = 15/9 —> 5/3
- cot = 9/12 —> 3/4
The first is non-simplifed form while the second that has the arrow pointing is the simplest form.
Let me know if you have any doubts.
Answer:
17.2
Step-by-step explanation:
8.7x-1.9x=116.96
6.8x=116.96
x=116.96/6.8
x= 17.2
Answer:
C. 50
Step-by-step explanation:
x+y=90
x=2y-30
90-y=2y-30
3y=120
y=40
90-40= 50
It would have to be B, because with a vertex on the x-axis, the only point it would touch the x-axis is the vertex, thus proving that this quadratic has only one zero.
You can't solve for the zeros by factoring because the function is not factorable.
I'll show you what happens:
f(x) = 6x^2 + 6x + 12
To solve for the zeros (when f(x)=0), set f(x) equal to 0.
0 = 6x^2 + 6x + 12
First you can factor out a 6.
0 = 6(x^2 + x + 2)
Divide by 6.
0 = x^2 + x + 2
Now you need two integers that add up to the coefficient of x (1) and multiply to the product of the last term and the coefficient of x^2. This number is 2.
No two integers add up to 1 and multiply to 2.
