Answer:
Step-by-step explanation:
Using the Pythagorean identity
sin²x + cos²x = 1, then
cosx =
cosΘ =
= = =
Here's the "compound amount" formula:
A = P (1 + r/[n]) ^ (nt).
Mama52's comment, above, would be true EXCEPT that the base should be (1 + 0.038/2), which produces a different result:
Thus, the compound amount, with principal $4000, at 3.8%, compounded 2x per year, for 7 years, is
A = $4000 ( 1 + 0.038/2) ^ (7*2), or $5205.93 (answer)
Answer:
5x - 12
Step-by-step explanation:
If P is the midpoint of Line ST, then Lines SP and PT equal ST.
Answer:
Here we have the equation:
y = 4*x^2 - 4*x - 1
And we should have the graph (you can see it below this answer)
Now we want to find the solutions of:
4*x^2 - 4*x - 1 = 0
These solutions will be the two values of x at which the graph of our function intersects the line y = 0, that is the x-axis.
Then we need to find the two values of x at which our graph intersects the x-axis.
In the graph, we can estimate the solutions as:
x = -0.2
x = 1.2
To find the exact solutions we can use the Bhaskara's equation, and we will find that the solutions are given by:
Then the two solutions are:
x = (4 + 5.66)/8 = 11.2075
x = (4 - 5.66)/8 = -0.2075
The other angle would be 110 degrees. This is because a supplementary angle equals 180 degrees. So, 180-70=110<span />