Answer:
Step-by-step explanation:
Consider the space . Each point (x,y) can be uniquelly determined by giving values to x and y. The pairs (x,y) in this space can be identified as vectors. In this space identifying a point (x,y) by x and y is using the cartesian coordinates. However, there is anothe way of identifying the point (x,y), which is using polar coordinates. In this coordinates, we identify the point with its distance to the origin (named r) and the angle that makes the line, joining (x,y) and (0,0), with the x axis (named ). The way of relating both types of coordinates is given by the equations
Now, consider a complex number z. They are of the form where x,y are real numbers. In this case, each complex number can be uniquelly described by giving values to x,y. In this case, this is equivalent by considering the cartesian plane, where the y axis is related to the imaginary axis. So, we can uniquelly identify a complex number of the form z = x+iy with a vector in of coordinates (x,y). Since in we can use polar coordinates, we can use the same coordinates to characterize the complex numbers.
Answer:
a) Combined amount of truffles and caramels bought
b) Amount of money spent in total on both truffles and caramels
Answer: A ( 15 units)
Step-by-step explanation:
The triangles AED and BEC defined inside the rectangle by the diagonals, are isosceles. This means that side AE and DE are similar so AE is half of the diagonal which value is 30 units.
Answer:
-13^2
Step-by-step explanation:
The polygon have 59 sides.
Solution:
Sum of the measure of interior angle of the polygon = 10260°
Interior angle theorem of polygon,
<em>The sum of measure of interior angles of a polygon is (n – 2) × 180°.</em>
By this theorem,
(n – 2) × 180° = 10260°
Divide by 180° on both sides.
Add 2 on both sides, we get
n – 2 + 2 = 57 + 2
n = 59
Hence the polygon have 59 sides.