Alright, so you have the basic formula- good.
You have the A value (400), the interest rate r (7.5% -> .075 in decimal), and the final P value (8500). So, we only need to solve for t.
8500 = (400)(1+.075)^t
/400 /400
21.25 = 1.075^t
logarithms are the inverse of exponents, basically, if you have an example like
y = b^x, then a logarithm inverts it, logy(baseb)=x
Makes sense if you consider a power of ten.
1000 = 10^3
if you put logbase10(1000), you'll get 3.
Anyways, though, to solve the problem make a log with a base of 1.075 in your calculator
log21.25(base 1.075) = t
also, because of rules of change of base (might want to look this up to clarify), you can write this as log(21.25)/log(1.075) = t
Thus, t is 42.26118551.
Rounded to hundredths, t=42.26
Answer:
A line of cars will be about 9650000 feet
Step-by-step explanation:
Simple:
Hope this Helps!
Stay Safe!
The surface area of the box will be 112 in²
Explanation
According to the given diagram, the shape of the box is Right Rectangular prism.
The formula for the surface area is :
, where 
length, 
width and 
height of the rectangular prism
Given in the diagram that, 
So, plugging the values into the formula...
So, the surface area of the box is 112 in²
Answer:
so its the second one (1.28 , -3.68)
Step-by-step explanation:
its (32/25 , -92/25)
which equals to (1.28,-3.68)
They look like ovals, hmm looks to be the answer is oval.
