Answer:
x = 1
Step-by-step explanation:
2x + 5 = 10 - 3x
2x + 3x = 10 - 5
5x = 5
x = 1
Answer:
26.25
Step-by-step explanation:
she sold 35 muffins
Answer:
The margin of error (E) 
Step-by-step explanation:
Given,
mean 
standard deviation 
sample size 

Critical value


Critical value 


The margin of error (E) 


Hence, The margin of error (E) 
Complete question is attached in below.
Answer:
x=9
Step-by-step explanation:
Use the intersecting chord theorem:
RE*ET = UE*ES
Substitute values
21 (2x+2) = 30 (x+5)
Expand:
42x+42 = 30x + 150
transpose and simplify
42x-30x = 150 - 42
12x = 108
x = 9
Since f(x) is up and down, simply decrease the overall equation by 2 to get 2sqrt(x+3)+3 instead of +5. To move it 5 to the right, we have to do something kind of weird, which is subtract 5 from (x+3) instead of add 5 to get
2sqrt(x-2)+3.