Answer:
Step-by-step explanation:
- 2 ≤ x ≤ 1
x ∈ [ - 2 , 1 ]
This one uses the formula A(t)=P(1+r)^t, where A(t) is the amount in the end, P is the initial investment, r is the rate, and t is the time in years. Because we are compounding annually, the formula is simpler than it would be if we had to consider half of a year or a quarter of a year. If we don't know how much money we started with, how can we know what its double is you might ask. Let's make up the numbers!! We will start with 1000, so doubling it is 2000. So the formula would look like this: 2000=1000(1.05)^t. Divide thee 2000 by the 1000 to get 2 = 1.05^t. Now take the common log of both sides to get
log 2 = log 1.05^t. One of the properties of logs tells us that we can bring the t down in front of the log so it looks like this now: log 2 = t log 1.05. Divide both sides by log 1.05 to get the t alone: log 2/log 1.05 = t. Do the math on your calculator to get that t = 14.2 years.
Answer:
There are plenty of unique ways to wrap presents beautifully. The quickest way that doesn't even require a box: Create a gift bag out of another ..
Step-by-step explanation:
There's something about a pile of presents under the tree that catches the eye—no matter how they're wrapped. But when your gifts look like something straight out of a storybook, it instantly adds to the Christmas magic.
We know what you're thinking, though: Who has time for that between decorating the house, shopping for your loved ones, prepping for the Christmas party, and planning your holiday meal? What if we told you that creating presents that look professionally wrapped is actually fairly simple?
There are plenty of unique ways to wrap presents beautifully. The quickest way that doesn't even require a box: Create a gift bag out of another household staple, like an old (but clean) pillowcase or a brown paper bag. You'd be surprised what a simple stamp, paint pen, or stylish ribbon can do to breathe new life into these objects. But if you have a little more time to get creative, why not raid your craft closet and make something truly special and Pinterest-worthy, like lace-covered packages or custom paper created by your kids?
No matter which direction you go and no matter what holiday you're celebrating—Christmas, a kids' birthday, or a life event like a wedding or a baby shower—you'll find plenty of inspiration, plus step-by-step gift wrapping instructions, here. When you're done, we're certain that present is going to be so pretty, it'll almost be too hard to open
Answer:
Part 1: 43.75%
Part 2: 44.07%
Step-by-step explanation:
Hello!
(Pt.1) First, set up a ratio 
. Next, you use long division I got the percent 43.75. After that, you subtract 6 from the girls group, (because of them moving away and then more coming back.) and 2 from the boys group. Then, you subtract those from the school "population" and you get 472 as the final population. So then you set up another ratio, 
. I got a percent of 44.07% from that.
Thanks For Reading!
