C. $693.33. Just round. It helps. Round 2,080 to 2,100. Then whats 30% of 2,100? It's easy just think of 21 divided by 3, which equals 7. So, 700 and the closest answers to that is $693.33. That's just the easy way instead of doing the math out. And it is also common sense that B or D wouldn't be it. So your left with C or A. :)
Answer:
answer is G
zeros are 3, -5
brainlist if you get this right please :)
Aqui está um exemplo:
3/9-X/X = 2/9
Que é 3/9-1/2 = 9/9
Boa sorte!
In any right triangle ABC, with right angle A we have the following:

and

.
This means that the sine of a non 90° angle, is equal to the cosine of its complementary angle.
Thus,

.
(Take a look at the picture. From the definition of trigonometric ratios in right triangles we have :

and

)
Answer: 19/20