Answer:
He could use y+3x=-4
Step-by-step explanation:
When we subtract 3x on both sides, we get y=-4-3x, which means we just solved a variable and can substitute into the other equation 2x-3y=-21
Answer:
sorry, thought I could help. horrible at math.
Answer:
Step-by-step explanation:
The graph is a nonlinear graph.
The hang time is 3 seconds.
The h- coordinate of the top of the bump is about 11 m, so the maximum height is 11 m after rounding to the nearest meter.
For t between 0 and 1.5, the height is increasing.
I hope this helps. I found it on Khan Academy.
Answer:
See below
Step-by-step explanation:
- <em>There is a formula for estimating square root of non-perfect square numbers</em>
- <em>√(A²±B) = A ± B/2A</em>
- <em>where A² is the nearest perfect square, B is the difference between the original number and the perfect square</em>
<u>Examples</u>
- 1) √75 = √(8²+11) = 8 + 11/(2*8) = 8 + 11/16 = 8.6875
- 2) √114 = √(11² - 7) = 11 - 7/(2*11) = 10.6818