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A van travels at a speed of 70kph. Calculate the mass of the sun???

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Not really

•What are the roots of x²+5x+6=0 ?

Given the quadratic equation , you must factor it

So we have the factor of

Equate each to zero

So the roots are -2 and -3

Hope this helps =)

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.