The roots of the equation 2x^2 + px + q=0 are (2a + b) and (a +2b) calculate through values of p and q

x = {-0.8, 0.8}

Step-by-step explanation:

Simplifying

25x2 = 16

Solving

25x2 = 16

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '25'.

x2 = 0.64

Simplifying

x2 = 0.64

Take the square root of each side:

x = {-0.8, 0.8}

40% off the regular price is the correct answer.

step-by-step explanation:

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.