Answer:
3 hours
Step-by-step explanation:
Since Taryn's target is $25.5 and currently has $3, she is less by 25.5-3=$22.5
Considering hourly pay of $7.5 then she needs x hours to meet her target. Equating this as 7.5x=22.5 then making x the subject of the formula we obtain that x=22.5/7.5=3 hours.
Therefore, this week, to meet the target of $25.5 for Taryne to go to the movies she needs to baby sit for 3 hours and add what she currently has, $3
9514 1404 393
Answer:
- 28 +10√3
- 81 -30√2
- 54 +36√2
Step-by-step explanation:
It is useful to remember the form for the square of a binomial.
(a +b)² = a² +2ab +b²
(a -b)² = a² -2ab +b²
__
1. (5 +√3)² = 5² +2·5·√3 +(√3)² = 25 +10√3 +3
= 28 +10√3
__
2. (√6 -5√3)² = (√6)² -2·√6·5√3 +(5√3)² = 6 -30√2 +75
= 81 -30√2
__
3. (6 +3√2)² = 6² +2·6·3√2 +(3√2)² = 36 +36√2 +18
= 54 +36√2
Answer:
The probability the average mpg is less than 28 mpg is 0.8413.
Step-by-step explanation:
Given : The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline consumption is approximately normal with
Mean 
mpg and standard deviation 
mpg.
Number of sample n=36
To find : What is the probability the average mpg is less than 28 mpg?
Solution :
Applying z-score formula,
The portability is given by, 
Using z-table,
Therefore, the probability the average mpg is less than 28 mpg is 0.8413.
Answer:
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Step-by-step explanation:
Yes and the correct one is A
