Consider an experiment taste-testing four types of chocolate chip cookies: 1 (brand A, chewy, expensive), 2 (brand B, crispy, expensive), 3 (brand C, chewy, inexpensive), 4 (brand D, crispy, inexpensive). We will use ten different raters randomly assigned to each type (40 total raters).
Answer the following questions:
a) Design contrasts to compare chewy with crispy, and expensive with inexpensive.
(b) Are your contrasts in part (a) orthogonal? Why or why not?

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.

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

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the answer for the question that you are asking is 4