Answer:
Your answer is correct. The series is a geometric series with common ratio -1/4 and first term 40. So each term is:
an = 40 (-1/4)^(n−1)
So the sum of the first 10 terms is:
∑(n=1 to 10) [ 40 (-1/4)^(n−1) ]
Answer:
0.62 is the answer
Step-by-step explanation:
Answer:
or
I chose the quadratic formula because I could not factor the quadratic.
Step-by-step explanation:
First of all let's work out what 
equals to. We can do this by replacing every 
term in 
with a 2.
So: 
Now let's set up our equation 
. Replace the functions with what we know they equal to.
Now bring all the terms to one side:
Now we can solve this quadratic for .
I'll put this into the quadratic formula because it cannot be factored.
, Compare our quadratic to the general equation of a quadratic: 
.
Now put these terms into the quadratic formula to get the values for .
So: 
=2.8 (1 decimal place)
or
= -4.3 (1 decimal place)
The gross profit is approx. 30%
$1.50 of $5.00
5 x .30 = 1.5
Answer:
Point B is (7,3)
Step-by-step explanation:
point A to point B is 7 units apart and 1 unit down.
then from point M you do the same thing based on the slope, you move 7 units right from point M and lastly move 1 unit down which the coordinate point for B should be (7,3).
