Answer:
me neather
Step-by-step explanation:
Answer:
FV= $436.72
Step-by-step explanation:
Giving the following information:
Initial cost (PV)= $500
Decrease rate (d)= 7% per year
Number of periods (n)= 2 years
<u>To calculate the future value after 2 years, we need to use the following formula:</u>
FV= PV / (1 + d)^n
FV= 500 / (1.07^2)
FV= $436.72
so use a basic formula here:
area of a circle = πr²
and the circumference of a circle = πd
a)
therefore the area of the pool cover is π multiplied by the radius² (which is the diameter of the pool cover plus the extra 12 inches divided by two, so the radius is 21/2 or 10.5) is 346.36(to two decimal places.)
b)
Using the same diameter, we can work out the length of the rope by multiplying the diameter (10.5) by π, which is 32.99 (to two decimal places).
2x-25=x+5 move your “x” on the right side to the left side but to move it you need to switch the sign to cancel it out on the right. That ends up giving you x-25=5. You want X by itself so you move over your “25” but also change the sign. Giving you x=30
To find your y you set the equation to 0. 9y+28=0. You want Y by itself, so you want to move the 28 over first. Switch the sign which gives you 9y=-28. To get y alone divide by 9. 28/9 = 3.1(repeating 1)