The answer is the last one!!
Answer:
1.5 hours
Step-by-step explanation:
when norman left and 30 minutes passed he had traveled 20mph
norman. earl
30 min passed. 20mph. 0mph
1 hr passed. 40mph. 30mph
1 hr 30 min. 60mph. 60mph
Answer:
Step-by-step explanation:
Set up null and alternate hypothesis
H0: p =0.05
Ha: p>0.05
(One tailed test at 5% level)
Sample size n =384
Sample proportion p = 46/384 =0.1198
p difference = 0.1198-0.05 =0.0698
Std error = 
Test statistic = 4.23
p value = 0.000012
Since p<0.05, we reject null hypothesis
There is more than 99.95% probability that proportion is more than 0.05
We accept the claim that the risk has increased.
Answer:
0, 2 . . . . . (any pair of consecutive even integers)
Step-by-step explanation:
You want a pair of consecutive even integers such that twice the lesser is 4 less than two times the greater.
<h3>Setup</h3>
Let x represent the lesser of the two even integers. Then the greater is (x+2) and the given relation is ...
2x = 2(x+2) -4
<h3>Solution</h3>
Simplifying gives ...
2x = 2x +4 -4
2x = 2x . . . . . . . true for any even integer x
Any pair of consecutive even integers will satisfy the relation.
one such pair is 0, 2
<em>check</em>: 2(2) -4 = 2(0)
