Answer:
25x^2+40x+16
Step-by-step explanation:
We have to distribute each term to the other terms.
Let's take the first 5x and multiply it by 5x and 4 in the second set of parentheses.
5x*5x+5x*4
25x^2+20x
Now we have to multiply the first 4 by, again, 5x and 4
4*5x+4*4
20x+16
Now we combine the two bolded expressions.
25x^2+20x+20x+16
Now we combine like terms
25x^2+40x+16
Hope this helps!
time profit number
truck 10 min 1.00dollar t
car 12min 1.50 dollar c
boat 8min 0.60 dollar b
let the worker produce t trucks, c cars, and b boats.
10t+12c+8b=400
t+1.5c+0.6b is more than or equal to 35
t is more than or equal to 0
c is more than or equal to zero
b is more than or equal to zero
(this question is kinda wierd. i do not know if i am correct, because mine is not exactly a system of inequalities, but if you really need an answer, you can try this one.)
Answer:
729 m^3
Step-by-step explanation:
Volume of cube = a^3
a= 9m
a^3= 9^3
hence volume = 729m^3
Answer:
(a) The net profit for walking 3 dogs is $40
(b) The net profit for walking 6 dogs is $100
Step-by-step explanation:
There are mistakes in your question; however, the correct given parameter is

Required
Interpret p(3) = 40 & p(6) = 100
Interpreting p(3) = 40
Comparing this to 
d = 3 & p(d) = 40
This implies that:
The net profit for walking 3 dogs is $40
Interpreting p(6) = 100
Comparing this to 
d = 6 & p(d) = 100
This implies that:
The net profit for walking 6 dogs is $100