Answer:
12 3/4, 12.7, 12/5
Step-by-step explanation:
12 3/4 = 12.75
12 3/5 = 12.6
Y=4
-10/-10 = -40/-10
-40/-10 = 4
Answer:
k = 36 and r = 8
Step-by-step explanation:
Given that r varies directly as p and inversely as q² then the equation relating them is
r = 
← k is the constant of variation
To find k use the condition r = 27 when p 3 and q = 2, thus
27 = 
( multiply both sides by 4 )
108 = 3k ( divide both sides by 3 )
k = 36
r = 
← equation of variation
When p = 2 and q = 3, then
r = 
= 
= 8
Answer:
The data provide strong evidence that young men weigh more on average than old men in the U.S
Step-by-step explanation:
Given :
The null hypothesis ; H0 : μ1 = μ2
The alternative hypothesis ; H1 : μ1 > μ2
T score = 5.3 ; Pvalue = < 0.0001
The decision region :
If Pvalue < α ; We reject the Null
If Pvalue > α ; We fail to reject the Null
When the α - level isn't stated, we usually assume a α - level of 5%
However, even at lower alpha level of 1% = 0.01 ;
The Pvalue < α
Hence, we can conclude that there is significant evidence that there is difference in the mean weight of young men and old men in the U.S
Answer: 3>x
Step-by-step explanation:
2 > x - 1
+1 +1
3 > x
