Answer:
<em><u>17: 480</u></em>
(We first arrange all of the candidates except b in a line. This can be done in 5! ways. We now add b to the line. Since we now want to count the arrangements where b is positioned next to a, there are two possibilities for the position of b. (Either left of a or right of a).
There are thus 2⋅5! ways of arranging the candidates so that a and b are next to each other, and hence 6!−2⋅5!=4⋅5!=480 ways of arranging the candidates so that a and b are not next to each other)
<u><em>18</em><em>:</em></u><em><u> </u></em>i don't know sorry
Answer:
Step-by-step explanation:
<em>1 </em>negative x-tile and<em> 8</em> positive unit tiles on the left side;<em> 7 </em>positive x-tiles and <em>8 </em>negative unit tiles on the right side
Answer:
105
Step-by-step explanation:
L*W*H
7*3*5 = 105
Answer:
$140
Step-by-step explanation:
20% of 700 is the same as
.2 * 700 = 140
She would make $140
Answer:
Y= -4 :)
Steps:
Apply rule
-y + 3 = 7
Subtract 3 from both sides
-y + 3 - 3 = 7 - 3
Simplify
-y = 4
Divide both sides by -1
-y/-1 = 4/-1
Simplify
y = -4
