30.56 hope i helped my gurl
2you suppose to multiplie the lenghts to the base
Answer:
67
Step-by-step explanation:
Since the diagonals in a rectangle are congruent, AC=BD and
7x+18=10x-3
We need to separate x -- to do that, we can first subtract 7x from both sides, resulting in
18=3x-3
Next, add 3 to both sides to get
21=3x
Divide both sides by 3 to get
x=7
Then, we just plug x into 10x-3 to get BD = 7*10-3 = 67
144 degrees, q=s, so 3a=4a-12. a=12, and 12*12= 144
An expression for “7 divided by c” is 7/c or 7 ÷ c
