<span>(3x^2+3)(4+x^3)
=</span><span>12x^2 +3x^5 + 12 + 3x^3
= </span>3x^5 + 3x^3 + 12x^2 + 12
Answer
-8 
r > 0
Step-by-step explanation:
you know that r is less than or equal to -8, so you write that, and then you know that r is also greater than 0, so then you add that to it, and then you have the answer. r will be in the middle because it is the range of what are can be.
the line of the graph is vertical since both x coordinates are the same ( both are -2)
so the equation would be x = -2
Answer:
$6.50
Step-by-step explanation:
Let the cost of a bowl and a jug be $b and $j respectively.
3b +j= 13.70 -----(1)
j= b +4.10 -----(2)
Substitute (2) into (1):
3b +b +4.10= 13.70
4b +4.10= 13.70 <em>(</em><em>simplify</em><em>)</em>
4b= 13.70 -4.10 <em> (-4.10 on both sides)</em>
4b= 9.60
b= 9.60 ÷4 <em>(÷4 on both sides)</em>
b= 2.40
Substitute b= 2.40 into (2):
j= 2.40 +4.10
j= 6.50
Thus, the jug costs $6.50.
30 km/h to the store. 60 km/h back from the store.
(60 + 30) \ 2
We use the mean average formula.
90 \ 2
Final answer: 45
