Answer:
Step-by-step explanation:
Whenever you add two number x and -x and it becomes 0 . IT is the identity property.
Ex:
-1/3 + 1/3 = 0
-1 + 1 = 0
-58 + 58 = 0
Step-by-step explanation:
= 55 - 2x is the answer .
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Answer:
x = 2 sqrt(3)/3
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opp / hyp
sin 60 = 1 /x
x sin 60 =1
x = 1 /sin 60
x = 1 / sqrt(3)/2
x = 2 sqrt(3)/3
Answer:
Step-by-step explanation:
6/4=1.5 (price per can)
10/8=1.25 (price per can)
1.25 is cheaper than 1.5
the second one is the better buy