Answer:
A is 1.
B is 2.
C is 3.
PEMDAS
1 +2(3) = 1 + 6 = 7
to the person who said I made a mistake, I didn't lol
heres the indepth part since you need it:
1 + 1 + 1 = 3
2 + 2 + 1 = 5
3 + 3 + 2 = 8
if you made the error of thinking it was (1+2), then you misunderstood the problem. it would then be 3x3 which is 9.
Answer:
they said what is the coefficient in the term 13a so the coefficient would be a
Step-by-step explanation:
Answer:
2.
Step-by-step explanation:
It's a random sample, so anyone could be sampled. Everyone has the same rate of being sampled, therefore the results are fair and equal.
The perimeter of a semicircle consists of two parts. (the curve and bottom)
That curve is half the distance around the circle, since it's been split in half.
The distance around a circle, the circumfrence, is equal to 2πr, where r is the radius of that circle. In this case, the circumfrence of the entire circle would be 16π. and so that curve would have a length of just 8π.
Using 3.14 for π, 8π = 8×3.14 = 25.12.
As for the flat part, that is the diameter (distance across) our circle.
The radius is the distance from the center of a circle to its edge, and always has half the length of the diameter. (you can break the diameter down into two radii)
If our radius is 8 meters, our diameter (the flat part of that semicircle) must be 16.
Now we add up the two parts of the perimeter...25.12 + 16 = 41.12.