Answer:
-4
Step-by-step explanation:
-2 + -2 = -4
Answer:
Simple interest will allow her to owe the least amount of money.
Step-by-step explanation:
Compound interest = $1156.73
Simple interest (I) = P * r * t
$1062.50
I think it would just be c(x) = 20,000 + 4x
Domain being [20,0000, infinity) because your cost will never be lower than 20,000
Sine(angle) = opposite side / hypotenuse
cosine(angle) = adjacent side / hypotenuse
tangent(angle) = opposite side / adjacent side
Look up trigonometry triangle side names if you need help on that.
I remember this by SOH CAH TOA
The distance around a round object (i.e. a circular pool, in this case) is also known as its circumference.
The formula for working out circumference is π × d, where π is the value of pi (usually rounded to 3.14) and d is the diameter.
Therefore, to work out the diameter, you just have to work backwards.
So you know the circumference, and you know the value of pi, therefore you just do:
C = π × d
67.51 = 3.14 × d
Now you just have to divide both sides by 3.14 to isolate the value of d and work out the diameter:
67.51 ÷ 3.14 = d
21.5 = d
Therefore, the diameter is 21.5 ft.