Answer:
Step-by-step explanation:
To get x by itself you would need to subtract 5 by 5 to cancel out 5 so now you just have x = 7 And since you subtracted 5 from that side you have to do the same to the other side which is 12 so 12-5 is 7
Answer:
The statement is true
see the explanation
Step-by-step explanation:
we have the proportion

we know that
To solve the proportion multiply in cross
so


therefore
The statement is true
Cos 60° = 1/2
1/2 = 6/x
1/2x=6
x = 6X 2 = 12
The length of the hypothenuse is 12
Answer:
negative reciprocal
Step-by-step explanation:
1 ≤ 3 - x
x + 1 ≤ 3 <em>added x to both sides</em>
x ≤ 2 <em>subtracted 1 from both sides</em>
Number line: ←----------------------·2 (fill in the dot at 2 since it is "equal to")
Interval Notation: (-∞, 2]