Answer:
Step-by-step explanation:
The compound interest formula is given by:
Where A(t) is the amount of money in the account after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit t and t is the number of years the money is invested or borrowed for.
For this problem, we have that:
The investment is compounded monthly. There are 12 months in a year. So 
The interest rate is 3%. So 
.
So
The amount of money in her account after t years is:
Isolate the x. Do the opposite of PEMDAS. First, add 30 to both sides
-6 (+30) > - 30 (+30) - 4x
24 > -4x
Isolate the x. Divide -4 from both sides. Note that when dividing a negative, you must flip the sign.
24/-4 > -4x/-4
24/-4 > x
-6 < x
-6 < x is your answer
hope this helps
If she reads 27 chapters in 9 hours then you would divide 27 and 9 then you would get three so she reads 3 chapters an hour
The approach of critical value is used to determine likely or unlikely through determination whether observed test statistics is more than it would have been if null hypothesis was true. In other words, test statistics is compared to critical value and decision made.
If test statistics is more than critical value, the null hypothesis is rejected. Otherwise, null hypothesis is not rejected.
In the current scenario, test statistics (2.148) is less than critical value (2.348) and thus null hypothesis is not rejected.
Answer:
4;
25
Step-by-step explanation:
x² + 2(x)(2) + 2²
x² + 4x + 4
x² - 2(x)(5) + 5²
x² - 10x + 25
