Answer:
Step-by-step explanation:
From the graphs attached,
Let the coordinates of the two points given on the black line in the first graph are (-4, 2) and (-1, 10).
When these points have been rotated by 90° about the origin,
Rule for the rotation will be,
(x, y) → (y, -x)
Therefore, coordinates of the image points will be,
(-4, 2) → (2, 4)
(-1, 10) → (10, 1)
Therefore, red line given given in graph (1) and black line (After rotaion of 90° clockwise) in graph (2) will be same.
Answer:

Step-by-step explanation:
Given



Required:
The area of the swimming pool
Assume the walkway will be on the 4 sides of the swimming pool.
The total length (L) of the swimming pool will be:


The total width (W) will be:


The area (A) is:


Expand bracket



Reorder

Answer:
log2(9) = 3
Step-by-step explanation:
Please check logarithm
10-20=10so the answer and 10-9=1 so that's the answer