XY is the value of something I think
Answer:
c= 7 3/4
Step-by-step explanation:
-8c+7+4c=-24
We move all terms to the left:
-8c+7+4c-(-24)=0
We add all the numbers together, and all the variables
-4c+31=0
We move all terms containing c to the left, all other terms to the right
-4c=-31
c=-31/-4
c=7+3/4
The absolute value sign makes it so that k+7 could be either -3 or +3 and the result would still be 3. This means there are two possible answers for k. The one that makes k+7=-3 and the one that makes k+7=+3. Just solve these two equations:
k+7=-3
k=-3-7
k=-10
k+7=3
k=3-7
k=-4
So the possible answers are -4 and -10. B is the correct choice.
Answer:
Step-by-step explanation:
Given is the shape of a trapezoid.
Therefore,
Area of the trapezoid
