Answer is the last choice
2a-4/1= -a-1/a-4
Cross multiply
(2a-4)(a-4)= -(a-1)
2a^2-8a-4a+16= -a+1
Bring right to left sign change signs
2a^2-8a-4a+16+a-1=0
Combine like terms
2a^2-11a+15=0
a= 2 b= -11 c= 15
Use quadratic formula
-b+-sq rt of b^2-4ac. Divided by 2a
-(-11) +- 11^2-4(2)(15) divided by 2(2)
11+-sq rt 121-120 divided by 4
11+1 /4. 11-1/4
12/4. 10/4
3. , 5/2
Answer:
100
Step-by-step explanation:
let 'n' = # chess club members
6 = 3/4 · 8/100 · n
6 = 3/50n
3n = 300
n = 100
Answer:
The length of each edge of the base is 7cm.
Step-by-step explanation:
The volume of a prism with square base is given by:

In which l is the length of each edge of the base and h is the height.
A prism with a square base has a height of 15cm and a volume of 735cm3.
This means that 
So





Length is a positive measure. So

Volume in cm³, so the length of each edge is in cm.
The length of each edge of the base is 7cm.
56 is the answer :)) your welcome