A^2 - 11^2 = ( a - 11 )( a + 11 ), because we have the formula d<span>ifference of squares, a^2 - b^2 = ( a - b )( a + b );</span>
W=3/4L
P=2L=2W
70=2L+2(3/4L)
70=2L+6L/4
70=2L+1.5L
70=3.5L
L=70/3.5
L=20 FT. ANS. FOR THE LENGTH.
W=4/4*20=15 ANS. FOR THE WIDTH
i think.
Answer:
b) (1,-7)
Step-by-step explanation:
the x changes by 4 so subtract the midpoint x by 4 to get x=1
then the y stays the same y= -7
9514 1404 393
Answer:
96
Step-by-step explanation:
For each of the 4 items in the first column, Dave can choose any of the 6 items in the second column.
For each of those 4×6 = 24 combinations of items, Dave can choose any of the 4 items in the third column.
The total number of choices Dave can make is ...
4×6×4 = 96 . . . different combinations
