Answer:
the third one
Step-by-step explanation:
iiiieeeeew edgeuinty
The first thing you should do for this case is to know the definition of the perimeter of the circle.
The perimeter of the circle is:
C = 2 * pi * r
Where,
r: radius of the circle.
Substituting we have:
C = 2 * (3.14) * (r).
Another alternative way is:
C = 2 * pi * (d / 2)
rewriting:
C = pi * d
Substituting we have:
C = (3.14) * d
Where d is the diameter of the circle.
Note: to complete the answer substitute the radius or the diameter of the circle in the given equations.
Answer:
C = (3.14) * d
C = 2 * (3.14) * (r).
Answer: B
15cm and 9cm
Step-by-step explanation:
If the price is p and the quantity of bread sold is q = 400 - 100p, the average collection, in reais, depending on the price p, is given by R (p) = (400 - 100p). P
For this collection to be R $ 300.00, you must have:
(400 - 100p). p = 300 ⇔ 4p - p² = 3 ⇔ p² - 4p + 3 = 0 ⇔ p = 1 or p = 3
R $ 300.00
The current price is R $ 3.00, as R $ 300,000 / 100 = R $ 3
To maintain the collection, the price must be lowered to R $ 1.00 (R $ 0.50 <R $ 1.00 <R $ 1.50)
ANSWER: letter A