Answer:
4
Step-by-step explanation:
Given in the question a logarithm expression
We will use Exponent of Log Rule
here b = 7
k = 16
So suppose
Now, according to the rule
16 = x²
to find x only take square root on both sides of the equation
x = √16
x = 4
so = 4
They get the same sum and one has a -15 and on has a 15
Remember that for a function of the form
, a parabola, the focus will be:
.
We know that the vertex of the parabola is (0,0), and the sun is the focus of the parabola; we also know that the focus is in the positive y-axis and when the comet is as its vertex, the distance between them is 60'000.000 km; therefore the focus of our parabola is (0, 60'000.000).
Now that we know the focus, we can find
using the focus of the parabola:
Now, the only thing left is replacing the value of
in our equation
:
We can conclude that the equation that represents the path of the comet is
You can solve this problem with one variable, x.
If the helicopter flew 34 times on Friday, and an equal number of times on Saturday and Sunday, then you can use the equation:
34+2x=118
2x=84
x=42
The answer is B.
Hope this helps!
-Astro, Helper in Training
A segment is only a "midsegment" if it connects midpoints. When labels above and below are 9 and 72, it is clearly not a midsegment. However, because it is parallel to the base, segments above and below on one side are proportional to those in similar positions on the other side.
72/9 = 56/(3x -20)
We can multiply by (3x -20)/8 to get
3x -20 = 7
3x = 27
x = 9
