Answer:yes
Step-by-step explanation:
A b=-105
a+b=8
x²+8x-105=0
x²+-7x+15x-105=0
x(x-7)+15(x-7)=0
(x-7)(x+15)=0
a=-7
b=15
divide 8 into 3
0.375
8 | 3.000
2 4
-----
60
56
----
40
40
----
0
0.375 is a decimal
times it by 100 to get percent = 37.5 %
(when you times decimals by 100 you simply move the decimal over two places right)
<h3>
Answer: 7.20</h3>
Work Shown:
18% = 18/100 = 0.18
18% of 40 = 0.18*40 = 7.20
The length is 12, because if it's 9 inches wide it has two sides of 9 inches which is 18. Then subtract that from the intial value 42 to get 24. After, you divide 24 by 2 due to there being 2 sides of the box and 24 is the sum of both sides. Hopethis helps!
