There you go... a. 10
If we add x to both sides, we get rid of the x on the right side which leaves us 1/2x + 2 = 7. (1/2=0.5)
Then if we substract 2 from both sides, we will get 1/2x = 5
If half of x = 5, then the whole of x = 10.
Answer:
10.4%
Step-by-step explanation:
5x^2-3x^2= 2x^2
2x^2-14
2(x^2-7)
1. tan(x) . . . . 3rd choice
2. False . . . it is a graph of sin(x)-3
3. Of the choices offered, the best is sin(x +45°), the 2nd selection. It actually looks like a graph of sin(x +60°).
4. True . . . . it matches the graph of Question 1 shifted up 2 units
5. Probably True. The graph is of the given equation. The wording of the question leaves doubt. (It is a "graph", not an "equation." If the question is taken literally, the answer is False.)
6. 2cos(x) . . . . . the 4th choice
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I wish some of these curriculum materials would be scrutinized by a good editor. It is hard to learn much from defective teaching material. Good luck.