Answer:
$64,269.65
Step-by-step explanation:
Lets use the compound interest formula provided to solve this:
![A=P(1+\frac{r}{n} )^{nt}](https://tex.z-dn.net/?f=A%3DP%281%2B%5Cfrac%7Br%7D%7Bn%7D%20%29%5E%7Bnt%7D)
<em>P = initial balance</em>
<em>r = interest rate (decimal)</em>
<em>n = number of times compounded annually</em>
<em>t = time</em>
<em />
First, change 6.25% into a decimal:
6.25% ->
-> 0.0625
Since the interest is compounded quarterly, we will use 4 for n. Lets plug in the values now:
![A=10,000(1+\frac{0.0625}{4})^{4(30)}](https://tex.z-dn.net/?f=A%3D10%2C000%281%2B%5Cfrac%7B0.0625%7D%7B4%7D%29%5E%7B4%2830%29%7D)
![A=64,269.65](https://tex.z-dn.net/?f=A%3D64%2C269.65)
The value of Sara's investment after 30 years will be $64,269.65
The correct answer would be A. Hope this helps!
Answer:
4
7,781,454÷9=864606
Step-by-step explanation:
Answer:
r = 28.28
Step-by-step explanation:
you already gave the equation: sin45°= 20/r
you wanna start by multiplying both sides by r. You do this so that your variable can be in the numerator and it will be easier to solve the equation:
r (sin45°) = 20
Now you divide both sides by sin45°, this will give you your final answer. For this, you have to put it in a calculator:
r = 28.28
P.S, good job on already knowing your equation... when i was learning this it took me a while to get eh hang of it :)