In a bag there are 22 items in total, including: 5 red triangles, 7 white circles, 3 blue circles, 1 red circles, 3 red stars, and 3 blue stars. You pick items randomly out of this bag. If you pick 2 items, what is the probability of picking first a triangle and then a blue item? 100% If you pick 5 items, what is the probability of picking 2 red stars and 3 white items? 100% If you pick 5 items, what is the probability of picking 2 red stars and 3 white items where the first item picked is a red star and the last item picked is a white item? 100%

answer: the two figures are congruent.

step-by-step explanation: they're congruent because figure efgh is reflected across the x and y axis but it was also rotated.

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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.

pi x^2

step-by-step explanation:

pi times x squared

c

step-by-step explanation: