The answer is 0.02
A = P(1 + r/n)ⁿˣ
A - the final amount
P - the principal (the initial amount)
r - the annual interest rate
n - the number of times that interest is compounded per year
x - the number of years
We have:
A = $572.60
P = $560.00
r = ?
n = 2
x = 1
572.60 = 560 * (1 + r/2)²*¹
572.60 = 560 * (1 + r/2)²
572.60 : 560 = (1 + r/2)²
572.60 = 1² + 2 * 1 * r/2 + (r/2)²
1.0225 = 1 + r + r²/4
4 * 1.0225 = 4 * 1 + 4 * r + 4 * r²/4
4.09 = 4 + 4r + r²
0 = 4 + 4r + r² - 4.09
0 = r² + 4r - 0.09
r² + 4r - 0.09 = 0
The rate cannot be negative, so it is 0.02
Well, 4/5 is equal to 0.80 and 3/8 is equal to 0.375 and if you take the two and subtract them, you should end up with 0.425 or approximately 4/10 or 1/2.
In the future, please use commas and periods. It was difficult to decipher where each equation started and ended.
J = Justin
A = Ava
E = Emma
J = A + 7.50
E = J - 12
E + J + A = 63
E = A + 7.50 - 12
A + A - 4.5 + A + 7.50 = 63
3A = 60
A = $20
J = $27.50
E = $15.50
Answer:
For an nth term U(n) = a + (n - 1)d
n = number of terms
a = first term
d = common difference
a = 5
d = 2 - 5 = - 3
U(n) = 5 + (n -1)-3
= 5 - 3n + 3
= 8 - 3n
The formula for the sequence is 8 - 3n
Hope this helps
Answer:
56.5 cm
Step-by-step explanation:
circumference = (π)(diameter)
c = (3.14)(18)
c = 56.52
round to nearest tenth: c = 56.5