




<em>⇨ Use the formula below</em>
<em />
<em>⇨ Substitute the parameters:</em>
<em />
<em />


Hope that helped
Answer:
7
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just don’t want to waste my time in case you don’t want me to :)
Answer:
Amount invested at 8% is $9000 and amount invested at 18% is $21000.
Step-by-step explanation:
Let amount invested at 8% be x.
Let amount invested at 18% be y.
We get the 1st equation as:
........(1)
We get the second equation as:

=> 
or getting rid of the decimal by multiplying by 100 on both sides.
........(2)
Multiplying (1) by 8 and subtracting from (2) we get
So, y = 21000
And 

So, x = 9000
Therefore, amount invested at 8% is $9000 and amount invested at 18% is $21000.
Answer:
x=2, or x=1
Step-by-step explanation:
Given the equations as
f(x)=2x and
g(x)=2^x
Using a graph tool the equations will intersect at points (2,4) and (1,2)
x =2 or x=1
Percent error=|

| times 100
(note the || is absolute value, means that whatever the result is inside, it is made positive)
predicted value=261
actual value=293
subsitute
percent error=|

| times 100
so using pemdas
do parenthasees first
|

|
|-0.12|
absolute value
0.1226
time 100
0.1226 times 100=12.26
answer is 12.26%
answer is B