Choose the combination of factors that create a rain

\displaystyle f(x)=\frac{10}{169}\left(x-8\right)^2-1f(x)=16910(x−8)2−1

Step-by-step explanation:

We can use the vertex form of a quadratic, which is given by:

\displaystyle f(x)=a(x-h)^2+kf(x)=a(x−h)2+k

Where (h, k) is the vertex.

Since we are given that the vertex is (8, -1), h = 8 and k = -1. Substitute:

f(x)=a(x-8)^2-1f(x)=a(x−8)2−1

Next, we are given that the parabola passes through the point (-5, 9). So, when x = -5, y = 9:

9=a((-5)-8)^2-19=a((−5)−8)2−1

Solve for a:

9=a(-13)^2-19=a(−13)2−1

So:

\displaystyle a=\frac{10}{169}a=16910

So, the equation of our parabola is:

\displaystyle f(x)=\frac{10}{169}\left(x-8\right)^2-1f(x)=16910(x−8)2−1

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.