I can't show the work, but if the problem is printed or on the computer, I recommend using Photomath in the AppStore :)
it must be 20, that’s the only way it will make sense.
Part A: D) x is positive, y is negative.
Part B: C) both x and y are negative.
Part A:
P' is found by rotating P 90° counterclockwise about the origin. This makes the coordinates (x,y) transform to (-y,x). Thus (-2,-1) maps to (1,-2).
Part B:
Q'' is found by rotating Q 90° counterclockwise about the origin, then reflecting across the x axis. This makes the coordinates (x,y) first transform to (-y,x), then makes the new y-coordinate the opposite sign. Thus (1,2) first maps to (-2,1), then to (-2,-1).
Answer:
The sum of the sequence is -152250.
Step-by-step explanation:
Given : Sequence
To find : What is the sum of the sequence?
Solution :
The given sequence is in Arithmetic sequence as the difference between them is same.
Where, the first term is a=-32
The common difference is
The last term is l=-780.
The last term formula is
The sum of n terms formula is
Therefore, the sum of the sequence is -152250.
Whats the problem? you didnt post any pic