The answer is A. 10C5(2a)^5(-3b)^5
Answer:
√3/2 or 0.866
Step-by-step explanation:
Use special triangles. (See attachment)
The cosine ratio is adjacent ÷ hypotenuse.
cos30° = √3 ÷ 2 = √3/2
As a decimal, cos30° ≈ 0.866
Remember all the primary trig ratios with the acronym SohCahToa.
"o" = opposite
"a" = adjacent
"h" = hypotenuse
S, C and T are sin, cos, tan
Answer:
The x coordinate of the parabola's vertex is: 5
Step-by-step explanation:
Although you didn't finish the phrases of the question, if they were asking the x-value for the x-coordinate of the parabola's vertex, which is a typical question for this type of problem, recall that the vertex is position equidistant from the parabola's branches because the parabola is a symmetric figure.
Therefore we need to find the point half way between x = 2 and x = 8.
Notice that the distance between these two points is "6" units, and half of such distance is "3" units, so the vertex must be located 3 units to the right of 2 (or equivalently 3 units to the left of 8).
Therefore, the x-coordinate of this parabola's vertex is "5"
Answer:
Option 3:
Step-by-step explanation:
Logarithmic functions represented by means that where x > 0, <em>b </em>> 0, and <em>b</em> ≠ 1.
According to the quotient rule:
In the given problem, since both logs have the same base = 4, then we can model to the quotient rule, resulting in:
Quotient rule:
Therefore, the correct answer is Option 3: