Answer:
560
Step-by-step explanation:
I'm kinda confused on whats being asked i went with just question number 5
Answer: B
Step-by-step explanation:
the inner product of (a,b) * (c,d) is ac + bd
= 4 * 6 + 8 * -3
= 24 - 24
= 0
since the inner product is equal to 0, the vectors are perpendicular
answer is b
The percentage of this plane that's enclosed by the pentagons is closest to: D. 56.
<h3>How to determine the percentage?</h3>
Since the side of the small square is a, then the area of the tile is
given by:
Area of tiles = 9a²
<u>Note:</u> With an area of 9a², 4a² is covered by squares while 5a² by pentagons.
This ultimately implies that, 5/9 of the tiles are covered by pentagons and this can be expressed as a percentage as follows:
Percent = 5/9 × 100
Percent = 0.555 × 100
Percent = 55.5 ≈ 56%.
Read more on area of square here: brainly.com/question/8902873
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Complete Question:
The plane is tiled by congruent squares of side length a and congruent pentagons of side lengths a and a²/a, as arranged in the diagram below. The percent of the plane that is enclosed by the pentagons is closest to (A) 50 (B) 52 (C) 54 (D) 56 (E) 58
Answer:
A) 5b - w + 8
Step-by-step explanation:
Hope it helps you :)