Answer:
that answe is b
Step-by-step explanation:
b because i took this test
x=4
Step-by-step explanation:
4(-6+5x)=24+8x
open the bracket
-24+20x=24+8x
collect like terms
20x-8x=24+24
12x=48
divide both sides by 12
12x/12 = 48/12
x= 4
-7+7n=2(-7+7n)
open the brackets
-7+7n=-14+14n
collect like terms
14n-7n=-14+7
7n=-7
divide through by 7
n=-1
length, width, and height are (b+2), (b-2), (b+3)
Step-by-step explanation:
Doing what the problem statement tells you to do, you get ...
(b^3 +3b^2) -(4b +12)
= b^2(b +3) -4(b +3) . . factor each pair of terms
= (b^2 -4)(b +3) . . . . write as a product
= (b -2)(b +2)(b +3) . . . . use the factoring of the difference of squares
The three factors are (b-2), (b+2), and (b+3). We have no clue as to how to associate those with length, width, and height. We just know these are the dimensions of the box.
Answer:
<u>P = 20</u>
Step-by-step explanation:
<u>Mean</u>
- 18.75 = 10(5) + 15(10) + P(7) + 25(8) + 30(2) / 32
- 18.75 × 32 = 50 + 150 + 7P + 200 + 60
- 600 = 460 + 7P
- 7P = 140
- <u>P = 20</u>