Answer:
Figure 1: 4
Figure 2: 8
Figure 3: 16
Figure 4: 20
Step-by-step explanation:
Go around each figure and count how many cube lengths it takes to go around.
Answer:
34
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
Here [ a, b ] = [ 1, 6 ]
f(b) = f(6) = 6³ - 9(6) = 216 - 54 = 162
f(a) = f(1) = 1³ - 9(1) = 1 - 9 = - 8, thus
average rate of change = 
= 
= 34
(u/v)(x) =
x^2 - x^4 + x^2
---------------------- = - (1 - x^2 + 1) = - (2 - x^2).
-x^2
I'd suggest you double check to ensure that you've copied down this problem correctly.
The given are:
cost for each blog = $20
cost for each feature article = $60
blog = 10+2(number of articles sold)
total earnings = $700
where,
a = article
b = blog
to solve,
60(a)+20(10+2a)=700
60a+200+40a=700
200+100a=700
100a=700-200
100a=500
a=500/100
a=5
The total feature articles produced last week was 5.
to check,
a+b=700
60(5)+20[10+2(5)]=700
300+20(10+10)=700
300+200+200=700
700=700
Indeed, the number of articles produced last week was 5.
