In NiCD battery, a fully charged cell is composed of nickelic hydroxide. Nickel is an element that multiple oxidation states. Assume the proportions of the states. Nickel Charge Proportions Found
0 0.17
+2 0.35
+3 0.33
+4 0.15
a. Determine the cumulative distribution function of nickel charge.
b. Determine the mean and variance of the nickel charge.

3/6   and 9/18

step-by-step explanation:

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answer: idk wbu

step-by-step explanation:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct