Answer:
16 = l
4 = w
Step-by-step explanation:
{64 = wl
{40 = 2w + 2l
{l = 8 + 2w
64 = w[8 + 2w] ↷
-64 + 8w + 2w² ↷
[2w² - 8w] + [16w - 64]
2w[w - 4] 16[w - 4]
[w - 4][2w + 16] = 0
↑
This is the expression we want because when we talk about dimensions, we want NON-NEGATIVE numbers. The other expression results in -8 = w, and we do not want that; this expression gives us a solution of 4 = w, and THIS is exactly what we want. Anyway, you plug "4" back into the system of equations and you will get a length of 16 centimetres.
I am joyous to assist you anytime.
Answer:
Step-by-step explanation:
dy/dx = 2x +4 = 2*1 +4 = 6
Answer:
See below.
Step-by-step explanation:
The vertex is the lowest point of the parabola.
The vertex is (-2, 1).
The x-intercepts are the points at which the parabola intersects the x-axis. This parabola does not intersect the x-axis, so there are no x-intercepts.
The y-intercept is the point at which the parabola intersects the y-axis.
This y-intercept is (0, 2).
1: -4/1
2: 1/2
3: 1/4
4: -4/1
I hope those r the correct answers
