Answer:
0.078
Step-by-step explanation:
Margin of error = z√(p(1-p)/n)
Given 
p-hat = 0.43
n = 270
z at 99% confidence interval = 2.576
Substitute
MOE = 2.576√0.43(1-0.43)/270
MOE = 2.576√0.43*0.57/270
MOE = 2.576√0.2451/270
MOE = 2.576*0.030129
MOE = 0.078
Hence the margin og error is 0.078
 
        
             
        
        
        
Answer:
first answer is correct
Step-by-step explanation:
Hello, we want to write 2 + 4 + 6 + ... + 20
for n = 1, 2n = 2*1 =2
for n = 2, 2n = 2*2=4
for n = 3, 2n=2*3=6
etc
so

thanks
 
        
             
        
        
        
Answer: 72 miles
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
3/4 x 28=21   Madilyn built 21 toys.
1/7 x 28=4     Penelope built 4 toys.
21+4=25        25 toys have been built altogether.
28-25=3
There are 3 toys left to build.
 
        
             
        
        
        
Answer:
q-u-a-d-r-a-t-i-c  f-o-r-m-u-l-a
Step-by-step explanation: