Answer:
Step-by-step explanation:
B: Above par. Stock has gained a bit of value since it was purchased.
Since you cannot add numbers which have x to the power of something and normal x, A and B are incorrect. C is also incorrect because I don't even know how you could get that number.
D is correct.
(14x2 + 7x) + 9x2 - you don't even need the brackets, so
14x2 + 7x + 9x2
(14x2 + 9x2) + 7x
23x2 + 7x
Answer:
50 Db
Step-by-step explanation:
we know that
The loudness in decibels is given by the formula

where
I = sound intensity in watts per square meter (Watts/m^2)
I₀ = reference intensity, = 10^(-12) Watts/m^2
so
For I=10^(-7) Watts/m^2
substitute in the formula above and solve for L



Y would equal 35 I believe.