Greetings!
"<span>The circumference of a circle is 12 inches. What is the radius?"...
We can use the formula to find the circumference of circle to solve this:
</span>

<span>
Input the information we know:
</span>

<span>
Solve for
r, using the properties of equality:
Simplify.
</span>

<span>Divide both sides by
6.28</span>

<span>
Simplify.
</span>

The radius is
1.91cm long.
Hope this helps.
-Benjamin
Answer:
2
Step-by-step explanation:
r(x) = 2 sqrt(x)
s(x) = sqrt(x)
r(x) / s(x) = 2 sqrt(x) / sqrt(x)
= 2
Answer:
P = 3x - 4
Step-by-step explanation:
Side 1 = x - 3
Side 2 = x
Side 3 = 2 + (Side 1) = 2 + x - 3 = x - 1
Perimeter = 20 in
Perimeter = Side 1 + Side 2 + Side 3
Perimeter = (x - 3) + (x) + (x - 1)
Perimeter = x - 3 + x + x - 1
Perimeter = 3x - 3 - 1
Perimeter = 3x - 3 - 1
Perimeter = 3x - 4
P = 3x - 4
Answer:
The probability of friend A winning with HH = 1/4.
Step-by-step explanation:
The probability of an event, A is P(A) given by the relationship;
P(A) = (The number of required outcome)/(The number of possible outcomes)
The parameters given are;
The condition of friend A winning = Coin toss sequence HH shows up
The condition of friend B winning = Coin toss sequence TH shows up
The number of possible outcomes = TT, TH, HH, HT = 4
(TH and HT are taken as different for the game to be fair)
The number of required outcome = HH = 1
Therefore;
The probability of friend A winning with HH = 1/4.
Estimating the area:

Calculating wallpaper:

we round up here because they will need a full roll to complete the room. Since they can't buy 7.92 rolls, they must buy 8.
Calculating cost: