First can you tell me what the answer to the 6.89 * 106 for Massachusetts is
Answer:
105 = (w+8) *w
w = 7 cm
l = 15 cm
Step-by-step explanation:
Area of a rectangle is
A = l*w
l = w+8
105 = (w+8) *w
Distribute
105 = w^2 +8w
Subtract 105 from each side
105-105 = w^2 +8w -105
0 =w^2 +8w -105
Factor
What 2 number multiply to 105 and add to 8
15*-7 = -105
15-7 = 8
(w+15) (w-7) =0
Using the zero product property
w+15 =0 w-7 =0
w=-15 w=7
impossible
not negative
w =7
l = 15
- 4| -2x 6| = -24
- 4| -12x| = -24
Divide by - 4
- 4| -12x| = -24
/ - 4 / - 4
| - 12x| = 6
= - 12x = 6 OR - 12x = -6
----------------------------------------------------------------------------
-12x = 6
Divde by -12
- 12x = 6
/ -12 / -12
x = -1/2
-12x = - 6
Divide by -12
- 12x = - 6
/ -12 / -12
x = 1/2
Answer ⇒ -1/2 OR 1/2