General Idea:
Integers in real life are used to denote both positive and negative numbers. For example to represent profit, gain, increase, deposit, Income we use positive integers and to represent loss, expenditure, decrease, withdrawal we use negative integers.
Conclusion:
The integer describes gaining 5 pounds is +5.
Answer:
The 99% confidence interval for the proportion of ASD in Arizona is (0.014, 0.018).
Step-by-step explanation:
The information provided is as follows:
The sample proportion is:
The critical value of <em>z</em> for 99% confidence level is, <em>z</em> = 2.56.
Compute the 99% confidence interval for the proportion of ASD in Arizona as follows:
Thus, the 99% confidence interval for the proportion of ASD in Arizona is (0.014, 0.018).
Answer is B
Hope this helps!
We will have to solve for the rate of both accounts.
We'll use this complicated formula:
<span>log(1 + rate) = {log(total) -log(Principal)} ÷ Years
One account doubles the money every 8.5 years:
(We'll make total = 2 and principal = 1)
</span><span>log(1 + rate) = {log(2) -log(1)} ÷ 8.5
</span><span>log(1 + rate) = 0.30102999566 / 8.5
</span>log(1 + rate) =
<span>
<span>
<span>
0.0354152936
</span>
</span>
</span>
10^<span>0.0354152936 = </span>
<span>
<span>
<span>
1.0849639136
</span>
</span>
</span>
rate = <span><span><span>8.49639136
</span>
</span>
</span>
The other account triples the money every 10 years:
<span>(We'll make total = 3 and principal = 1)
</span><span>log(1 + rate) = {log(3) -log(1)} ÷ 10
</span><span>log(1 + rate) = 0.47712125472 / 10
</span>log(1 + rate) = 0.047712125472
10^0.047712125472 =
<span>
<span>
<span>
1.116123174
</span>
</span>
</span>
rate = <span><span><span>11.6123174
</span>
</span>
</span>
Okay, NOW we have to calculate when will $750 invested at <span>8.49639136 interest equal $500 </span>invested at <span> interest </span><span>11.6123174?
</span>
That seems difficult to solve exactly because we have 2 unknowns:
We don't know the AMOUNT of money when one account equals the other and we don't know the TIME it will take.
<span><span>Amount 1 = 750 * (1.0849639136)^years
</span>
</span>Amount 2 = 500 * (<span>1.116123174)^years
I don't know how to solve for those equations when Amount 1 = Amount 2.
However, I was able (by trial and error) to determine a precise answer.
In 14.32005 years, both accounts will equal $2,411.07.
</span>
Answer:
$0.89/1 the cost is $0.89.
Step-by-step explanation:
cost over lb
13.35/15
unit rate means for 1 so divide 15 by 15 to get 1
what ever u do to the denominator do to the numerator so divide 13.35 by 15
13.35/15 divided by 15/15= 0.89/1
$0.89 for 1 lb