Answer:
n = 8
Step-by-step explanation:
2n - 5 = 11
2n = 11 + 5
2n = 16
n = 16/2
n = 8
A=LW
L=W-4
A=252
sub W-4 for L
A=(W-4)(W)
252=(W-4)(W)
252=W²-4W
minus 252 both sides
0=W²-4W-252
what 2 numbers multiply to get -252 and add to get -4
-18 and 14
0=(W-18)(W+14)
set to zero
W-18=0
W=18
W+14=0
W=-14
false, we can't have negative width
Width=18
L=W-4
L=18-4
L=14
length=14cm
width=18cm
Firstly, subtract 3 on both sides of the equation:
Next, divide by a:
Lastly, square root both sides, and your answer will be
Answer:
48
Step-by-step explanation:
base times hight times times 1/2
24X4X1/2
(3 x 10^6)(8 x 10^-4) = (3 x 8) x 10^(6 - 4) = 24 x 10^2 = 2.4 x 10^3