Solve this simultaneous linear equation
50x + 56y=690
65x + 48y=711

Hope its help u

Step-by-step explanation:

solve

50 x + 56 y = 690

65 x + 48 y = 711

The solution is find out by Cramer's rule as you have not mentioned any specific method,

Its in image

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.

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2