7/9 is the answer because you have to find common denominators and all that
The sentence that explains how the bonding pattern in metals makes them good conductors of electricity is <u>A. They are willing </u>to give up their valence electrons.
<h3>What are valence electrons?</h3>
Valence electrons are the electrons in the outermost shell, or energy level, of an atom, which participate in the formation of a chemical bond when the outer shell is open.
<h3>Answer Options:</h3>
A. They are willing to give up their valence electrons.
B. Their nucleus has more protons than neutrons.
C. They are malleable.
D. They have a simpler electron arrangement.
Thus, the sentence that explains how the bonding pattern in metals makes them good conductors of electricity is <u>Option</u> A.
Learn more about conductors of electricity at brainly.com/question/2624096
According to the situation described, the appropriate set of hypotheses for her significance test is given by:
.
.
<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if the proportion is still of 42%, that is:
.
At the alternative hypothesis, it is tested if the proportion is now lower, that is:
.
Hence, the the appropriate set of hypotheses for her significance test is given by:
.
.
More can be learned about an hypothesis test at brainly.com/question/26454209
27. You start off with 9, and since the range is 18, it's 9+18, which is 27. Hope I helped!!
