The total sound power, in decibels, from x objects each producing 50 decibels of sound power is given by the function f(x) = 50
+ 10 log x. Suppose each of the x objects increases its sound power by 10 decibels, so that the new total sound power, in decibels, is given by the function g(x) = f(x) +10
which shows the graphs of f(x) and g(x)?
which shows the graphs of f(x) and g(x)?
1 answer:
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Answer:
Step-by-step explanation:
Fraction of the total that is for corn (TC - Total corn):
fraction of the corn section that is for white corn (WC - white corn in the corn seccion):
we need to find the fraction of the whole field that is for the white corn.
For this we need to find how much is out of the
destinated to corn, and this will be the fraction of the total that is for white corn. We find this fraction by multiplying the fraction of corn (
) by the fraction of white corn in the corn section (
).
I will call the total fraction of white corn TWC, thus:
the answer is: of the whole field is planted with white corn
<span>Point B has coordinates (3,-4) and lies on the circle. Draw the perpendiculars from point B to the x-axis and y-axis. Denote the points of intersection with x-axis A and with y-axis C. Consider the right triangle ABO (O is the origin), by tha conditions data: AB=4 and AO=3, then by Pythagorean theorem:
</span>
<span>
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</span>
{Note, that BO is a radius of circle and it wasn't necessarily to use Pythagorean theorem to find BO}
<span>The sine of the angle BOA is</span>
Since point B is placed in the IV quadrant, the sine of the angle that is <span> drawn in a standard position with its terminal ray will be </span>
<span /><span>
</span><span>
</span>
.
</span>
<span>
</span>
{Note, that BO is a radius of circle and it wasn't necessarily to use Pythagorean theorem to find BO}
<span>The sine of the angle BOA is</span>
Since point B is placed in the IV quadrant, the sine of the angle that is <span> drawn in a standard position with its terminal ray will be </span>
<span /><span>
</span><span>
</span>