9514 1404 393
Answer:
63
Step-by-step explanation:
The number of seats in a row will give an arithmetic sequence:
6, 9, 12, 15, ...
The first term is 6; the common difference is 3. The general term is ...
an = a1 +d(n -1) . . . . . . n-th term of sequence with first term a1, difference d
The 20th term of the sequence is ...
a20 = 6 +3(20 -1) = 6 +57 = 63
There would be 63 seats on the 20th row.
30 inches long
Step-by-step explanation:
divide 36 by 1/6
this gives you six
subtract 6 from 36
there is 30 inches of hair left
Answer:
purple graph is for x+y>3
black graph is for x+y<-4
Step-by-step explanation:
I recommend u use desmos. it'll really help
hope u have a nice day :)
Yes I’m pretty sure that they do
Answer:
0.625± 1.645*0.0571
Step-by-step explanation:
First calculate the estimate as 72 petty cases and 45 are unsolved as follows :
estimate :72/45=0.625
the critical value is given by cumulative probability equal to the p* (critical probability) as ,
1)compute value for alpha =1-(confidence value /100).
=1-(90/100)=0.1
for critical probability as p*=1 - (alpha/2)=1 -(0.1/2)=0.95
for this critical value is denoted to central area ,
Z(alpha)=1.645
now the standard error :
s= here p is estimate and q is probability of failure and n is total no of cases
s= =0.0571.