Answer:
Step-by-step explanation:
C. -11<x<-4
|-2x-15|<7 split into possible cases
- 2x - 15 < 7, - 2 x - 15 > 0
-(- 2x - 15 ) <7, -2x - 15 < 0 solve the inequalities
x>-11, x < -15/2
x< -4, x> -15/2 Find the intersections
[ -11, -15/2 ]
-15/2, -4] Find the union
[-11, -4 ] Simplify
-11<x<-4
Answer:
Sample size is 
Step-by-step explanation:
Given that,
Margin of error 
%
Confidence level 
%
Suppose, sample proportion
i.e. 
We know that,
Margin of error 
∴ 
squaring on both side,
∴ 
Hence, the sample size is,
Hence, the correct option is 
Answer: 26 years old
Step-by-step explanation:
- Create an equation with Austin as x and Jamie as x+69 (I just like workin with addition signs more)= 4(x-3)= x+69-3
- Simplify the equations --> 4x-12=x+66
- Solve the equation: 3x-12=66 --> 3x=78 --> x=26
This is the same as other age problems, just with the extra step of distributing the multiplication.
Answer:
it is b
Step-by-step explanation:
Answer:
11 years 7 months 7 days(if 31 days a months) and change 7 days to 9 days if assuming 30 days a moths
