Answer:
Step-by-step explanation:
hello :
the x-intercepts when : y=0 means : 2x²--8x+5 =0
∆ = b² -4ac a=2 and b= -8 and c= 5
∆ = (-8)² -4(2)(5) = 64-40 =24
∆ >0 this equation has two solutions so : two x-intercepts
To keep track of something cause I use context clues and it was table
The answer is 2/5 barrel an hour
Answer:
B, 
Step-by-step explanation:
Using the law of cosines, which is
, you can simply insert all the values.
c=|u+v|
a= r value of u (10)
b= r value of v (5)
To find C, you simply have to subtract v from u, and then subtract that number from 180 to find the reference angle.
I.E.: ∠135 - ∠30 = ∠105 ↔ 180 - 105 = 75 = C
so, the completed equation would be 10^{2} + 5^{2}- 2(10)(5)cos(75)