Answer:
Step-by-step explanation:
Using closest Wolfram|Alpha interpretation: P (7 4) P (6 3)
Assuming
"P"
is referring to prime numbers
|
Use as
instead
Input interpretation:
primes | between 28 and P(18)
Values:
2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 (9 primes)
Octagon, stop sign.
Eight isoscles triangles. It looks like we're told the side is 9.9 and the height to the side (also called the apothem) is 12.
So each isosceles triangle has area (1/2)(9.9)(12) and we have eight of them,
area = 8(1/2)(9.9)(12) = 475.2
Answer: 475.2
Usually we wouldn't be told 9.9 -- this is the baby version. We know each of those isoscles triangles has unique angle 360/8=45 degrees, so the apothem and half the side of the octagon are a right triangle with acute angle 22.5 degrees.
The area of the right triangle with long leg 12, short leg x,
tan 22.5 = x/12 or
x = 12 tan 22.5
Twice that is what we're told is 9.9; let's check:
2x = 24 tan 22.5 = 9.941125496954282
The area of the little right triangle is
(1/2) 12 × 12 tan 22.5
and there are 16 of these
16 (1/2) 12 × 12 tan 22.5 ≈ 477.174
It is 5 bc I’m just answering so I can post my questions
Answer:
-4
Step-by-step explanation:
First we substitute in the values given for p and q. This results in 
Step-by-step explanation:
length of half circumference EFG=15
BC=8
the perimeter=57
the are=35square
