Answer:
Step-by-step explanation:
Using order of operations, the first thing to be calculated would be .
That would turn our equation into this:
You can then calculate left-to-right as usual to get the answer 10.
Answer:
45 it is 45 45 um yea I ben did thiss
C. It is the mean. Add all of the ages up and divide by how many there are.
15x²+16x+4 =0 (ax² +bx +c=0)
Δ = b²-4ac =256 - 4×15×4 =16
x1 = (-b+√Δ) / 2a = (-16+√16) / 30 =( -16+4) / 30 = -12/30 = - 2/5
x2 = (-b -√Δ) / 2a = (-16 -√16) / 30 = (-16 -4) /30 = -20/30 = -2/3
I believe it is C.
Good luck!