Calculate the circumference of the following circles correct to one decimal place
2 answers:
Answer:
47.1 cm
Step-by-step explanation:
For this problem, I'll use an approximation of , which is good enough for the level of accuracy we need. The definition of π itself is given by the equation
where c is the circumference of a circle and d is its diameter. If we want to find the circumference, we can simply multiply both sides of that equation by d to get the formula
Here, we're given d = 15 cm, so plugging that in, we find our circumference to be
So the circumference of this circle is approximately 47.1 cm.
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Answer:
4
Step-by-step explanation:
Calculate the distance using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = B(0, 0) and (x₂, y₂ ) = (,
)
AB = +
= +
=
=
= 4
Answer:
Option a :
Step-by-step explanation:
Given :
The drama club sold 100 tickets to a show, it had $300 in profit.
The next show, it had sold a total of 200 tickets and had a total of $700 profit.
To Find : Equation models the total profit, y, based on the number of tickets sold, x
Solution :
For 100 tickets he had $300 in profit .
⇒ ()=(100,300)
For 200 tickets he had $700 in profit .
⇒ ()=(200,700)
We will use point slope form i.e.
--(A)
Now, to calculate m we will use slope formula :
Now, putting values in (A)
Thus Option a is correct i.e.