-7+3x+7x = 7x+5
10x-7 = 7x+5
-7x -7x
3x-7 = 5
+7 +7
3x = 12
x=4
15)
4(a+b) + 12
= 4a + 4b + 12
= 4(a +b + 3)
answer is
b) 4(a +b + 3)
16)
x - 4(2x + 2)
= x - 8x - 8
= -7x - 8
answer
-7x - 8
Answer:
<h2>D. {-4, 1, 0, 2, 7}</h2>
Step-, by-step explanation:
For any order pairs (x, y), x is an element of a Domain and y is an element of a Range.
For {(7, -3); (-4, 2); (-1, 0); (2, -4); (0, -6)}
the set {7; -4, -1, 2, 0} is a Domain.
Answer:
B
Step-by-step explanation:
It's easier to explain why the other 3 are wrong.
A is wrong because it is just a standard arithmetic sequence. It adds one every time. That WOULD be correct if it had started at 2, seeing as that is how much it costs to get the bike initially.
C is wrong because although it starts at 2 it adds 2 every hour. It should add 1 instead.
D is wrong because the price is the exact same. It means there is no additional cost for the subsequent hours.
Answer:
Della must buy 11 packs of batteries to get free shipping
