90x^2+15x-30 (hope this helps)
Answer:
Step-by-step explanation:
Answer: The formula is (b1 + b2)h+PH
Step-by-step explanation:
Answer:
3*7=21
6*7=42
so 3*7 is 1/2 of 6*7
Step-by-step explanation:
Use the Pythagorean theorem, tan is y/x so y = -3 and x= -2. Because cos is negative and R is always positive. You need to find R- which is the hypotenuse;
3^2 + 2^2 = r^2
9 + 4 = r^2
13 = r^2
√13 = r.
So you already have tan<span>θ,
cot</span><span>θ= 2/3
sin</span>θ= -3/√13 BUT
you have to rationalize, so you get -3 √13/ 13
cscθ= √13/ -3
cosθ= -2/ √13 BUT
you have to rationalize, so you get -2√13/ 13
secθ= √13/ -2
