Answer:
sin A = 15/17
sec A = 17/8
Step-by-step explanation:
15 cot A = 8
First get cot A alone.
cot A = 8 / 15
Since cot is the reciprocal of tan then flip 15 and 8.
tan A = 15 / 8
Now you have the opposite and adjacent sides, just find the hypotenuse with Pythagorean's theorem
15^2 + 8^2 = 289
= 17
Now that you have all the sides use the opposite and hypotenuse to get sine and the adjacent and hypotenuse to get cosine then flip to get secant.
sin A = 15/17
cos A = 8/17
sec A = 17/8
Answer:
31
Step-by-step explanation:
31
I don’t see what your asking, theres no question. This is a statement.
B) y = -2x
when x = a
y = -2a
when x= 2a
y = -2(2a) = -4a
Answer:
Choices C and D
Step-by-step explanation:
The most simplest way is just to solve each one and see which two have the same answer as the first expression.
But you could also see that both of the 
are going to cancel each other out so you are left with 
which is also choice C.
For choice D I distributed the negative one to the insides of the parenthesis that left me with 
which is the same expression as the first one.
