Answer:
14
Step-by-step explanation:
 
        
             
        
        
        
Answer:
19/25 
Decimal: 0.76
Percent: 76%
Step-by-step explanation:
 
        
             
        
        
        
The extra cost of the apples and the carrots is 5 dollors  and 90 cent
        
             
        
        
        
Use the identity 
sec^2x = 1 + tan^2 x
- so sec x = sqrt(1 + tan^2 x) then:-
tan x + sqrt( 1 + tan^2 x) = 1
sqrt ( 1 + tan^2 x) = 1 - tan x
1 + tan^2 x  = 1 + tan^2x - 2 tan x
0 = -2 tanx 
tan x = 0 
x =  0, π 
π is an extraneous root because sec 180 = -1 
So the answer  is 0 degrees
        
             
        
        
        
Answer:
p value = 0.039
t = - 2.169 
Step-by-step explanation:
Applying the null and alternate hypothesis

 
 
using excel worksheet to calculate for ( t and p ) 
t = -2.169
p = 0.039
from the results obtained 
The conclusion is affected by the significance level because : 0.1 < p > 0.01
so when the significance level  is = 0.1 the Null hypothesis is rejected and we can say the mean time interval will change  while 
if the significance level = 0.01 the Null hypothesis is accepted and we can not say the mean time interval has changed because the p -value is greater than 0.01
attached is the excel solution