1) Those are polar coordinates
2) The expression inside cosine is the angle of the vector to be drawn
3) r is the length of the vector to be drawn.
For example:
- if you take angle =0 and r results to be =2, it means that you have to put a point over the x-axis at a distance of two units from the origin.
4) You have to look for notable values, like points on the axis and notable angles (0, 45°, 90°, 180 °,...)
5) Use derivation to find maximum and minimum values.
6) The graph of this function looks like the infinite symbol: ∞
7) Some notable points are: (0,0) ; (0,2) ; (0, - 2)
See attached the complete graph as a reference.
Answer: x equals 4
explanation:
An algebraic equation that has variables for money and time
Answer:
A- By simplifying 25 to 52 to make both powers base five and subtracting the exponents
Step-by-step explanation:
Change 25 into 5².
Apply the Quotient of Powers Property. (Subtract the exponents.)
Answer: A- By simplifying 25 to 52 to make both powers base five and subtracting the exponents
Here we're dividing a fraction (5/8) by another fraction. We could obtain the same result by inverting the divisor (2/5) and then multiplying (5/8) by (5/2).
The product is 25/16.
Thus, 2/5 divides into 5/8 25/16 times, or 1 9/16 times.
