If you are finding the sample space see if it is biased or not. and if it population then find the experimental or theoretical.
Factorizing an expression involves writing the expression in simpler forms
The values of z are 
or 
The equation is given as:
Expand the equation
Factorize the expression:
Factor out z - 4
Split
or 
Solve for z
or
Hence, the values of z are or
Read more about factorization at:
brainly.com/question/11579257
You do 244 divide by sixty and your answer is 4.06
Suppose the larger pump alone can empty the tank in L hours, and the smaller pump can finish the job in S hours, then each hour the large pump empties 1/L portion of the tank, and the small pump empties 1/S per hour
Working together for three hours, they empty the whole tank, which is 100% of it, so 3/L+3/S=100%=1
Larger pump can empty the tank in 4 hours less than the smaller one, so L=S-4
replace L: 3/(S-4)+3/S=1
Make the denominator the same to solve for:
3S/[S(S-4)] +3(S-4)/[S(S-4)]=1
(3S+3S-12)/[S(S-4)]=1
(3S+3S-12)=[S(S-4)]
S^2-10s+12=0
use the quadratic formula to solve for S
S is about 8.6
The answer is not whole hour.
Answer:
b.
i. N= 10n+120
= 10*14+120
= 260
ii. N = 10n+120
<=> 190=10n+120
<=> n=7
Step-by-step explanation:
