An investment is currently worth 1.2×107 dollars . Twenty years ago, the investment was worth 9.6×105 dollars. How many time
1 answer:
Answer:
12.5
Step-by-step explanation:
Let an old value be A
and a new value be B
Also, let B is greater than A
The number of times B is greater than A is found by dividing B by A
Now, in terms of scientific notation, how would we do the division? It is shown below:
Now, coming to our question, let's do the math using the statements and formulas we have seen above:
10^2 means 100, so we do the multiplication:
So, it is 12.5 times greater
You might be interested in
Answer:
y ≈ 6.7
Step-by-step explanation:
Using the sine ratio in the right triangle
sin26.5° = =
( multiply both sides by 15 )
15 × sin26.5° = y , then
y ≈ 6.7 ( to 1 dec. place )
When the first four terms in an arithmetic sequence are x+y, x-y, xy and x÷y, then the fifth term will be
A sequence of numbers in which every term (except the first term) is obtained by adding a constant number to the previous term is called an arithmetic sequence
In given arithmetic sequence
The first term = x+y
The second term = x-y
Then, the common difference= (x-y)-(x+y)
x-y-x-y= -2y
The third term = x-y+(-2y)
x-y-2y= x-3y
In question third term is given as xy
So both are equal
x-3y=xy
-3y=xy-x
-3y=x(y-1)
x=
Similarly fourth term will be
x-3y-2y=x-5y
substitute the value of x in the equation
Split the middle term and factorize it
(y-1)(5y+3)=0
y cannot be equal to 1, because the third term and fourth term will become x.
substitute the value of y in the equation of x
The fifth term=
Hence, when the first four terms in an arithmetic sequence are x+y, x-y, xy and x÷y, then the fifth term will be
Learn more about Arithmetic sequence here
#SPJ4
Answer:
The slope of the line is -4/5 or -0.8
Step-by-step explanation:
Slope =