They do not mean the same thing:
4 in 4000 stands for 4 thousands
4 in 400 stands for 4 hundreds.
You can see, that first '4' means 4 000, while the second one means 400, so the first one is 10 times greater.
As an expression, this is:
222c - 15 = c
If you want to solve it, add 15 to each side to get:
222c = c + 15
Subtract c from each side:
221c = 15
Divide each side by 221:
c ≈ 0.0678733
Hope this helps!
Answer:
3 > -6
-5 < -3
0 > -8
Step-by-step explanation:
(;hope this helps ;)
Answer:
- See the graphs on the document attached.
- See the explanation on the document attached
Explanation:
I can answer everyone except #6 since the function is garbled.
Take into account this:
- Vertex general form: y = A(x - h)² + k ⇒ vertex = (h, k)
- Axis of symmetry ⇒ x = h (vertical line that passes through the vertex)
- A > 0 ⇒ open upward (like an "U" shape)
- A < 0 ⇒ open downward (like "∩" shape)
See the pdf document attached with every answer because I could not upload the document here.