first you combine like term
3x+12x=2
15x=2
then you divide 15x by 2
x=7.5
I hope that's the answer
Answer:
69.75
Step-by-step explanation:
Answer:
-3=n
Step-by-step explanation:
21=-7n
divide both sides by -7
-3=n
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
Answer:
Yes, it is true that 1.555 <em>is </em>a rational number.