Answer:
The graph in the attached figure
Step-by-step explanation:
we have
-----> inequality A
The solution of the inequality A is the shaded area above the dashed line
The equation of the dashed line is 
The slope of the dashed line is negative
The y-intercept of the dashed line is the point 
The x-intercept of the dashed line is the point 
-----> inequality B
The solution of the inequality B is the shaded area below the solid line
The equation of the solid line is 
The slope of the solid line is positive
The y-intercept of the solid line is the point 
The x-intercept of the solid line is the point 
using a graphing tool
The graph in the attached figure
To find f(4) ( which means ' the value of f(x) when x = 4) we replace x by 4 then simplify:-
f(4) = 4*4 + 7
= 16 + 7
= 23 (answer).
Answer:
-3<u>-8</u>=-11
Step-by-step explanation:
The missing value is -8 because if you add is to -3 then you will get -11 and -11 = -11
YES
f(x)=0 when x is from (-infinity to 1)
f(x)=0.40x when x is from [1 to 99]
f(x)=0.50x when x is from (99 to +infinity)
Here f(x) is what Joaquin earns which is dependent on the weight (represented by x), thus the amount of money he receives is a function of weight.
Answer: 10 customers.
Step-by-step explanation:
The formula to find the required sample size :
(1)
, where p= prior population proportion.
n= sample size.
= Population standard deviation from previous studies.
Let p be prior population proportion of the customers who click on ads on their smartphones .
As per given , we have
p=0.62
E= 0.27
For 92% confidence , significance level : 
The critical value of z for 92% confidence interval from z-table would be
Put theses values in the formula (1), we will get
Therefore , the company should survey 10 customers .
