Use the Pythagorean identity

to simplify the numerator.

Now use that fact that

to set up the equivalent fraction:

Now reduce between the numerator and denominator to get -cos(x)
Answer:
none
Step-by-step explanation:
so we have one of the legs
we have hypotenuse
because:
MP=PN for legs
and they have hypotenuse in common:
OP=OP
<span>3(5x + 4) - 20 - 13x = -4
first use the distributive property with </span><span>3(5x + 4)
15x+12-20-13x=-4
combine like terms
2x-8=-4
add 8 to both sides
2x=4
divide both sides by 2
x=2</span>
Check the picture below.
the period is the repeating section that's looping over and over.
Answer:
Both represent a proportional relationship
Step-by-step explanation:
This is because when the independent variable in each table increases, the dependent variable increases as well, making the relationship proportional.