Answer:
r sin 55
Step-by-step explanation:
2nd is correct answer
$29.50 + $10.50 = $40
Answer: They gave her $40!
Answer: 709
Step-by-step explanation:
The formulas we use to find the required sample size :-
1. 
, where 
= population standard deviation,
E = Margin of error .
z* = Critical value
2. 
, where p= prior estimate of population proportion.
3. If prior estimate of population proportion is unavailable , then we take p= 0.5 and the formula becomes
Given : Margin of error : E= 3% =0.03
Critical value for 95% confidence interval = z*= 1.96
A study conducted several years ago revealed that the percent of junior executives leaving within three years was 21%.
i.e. p=0.21
Then by formula 2., the required sample size will be :
[Round to the next integer.]
Hence, the required sample size of junior executives should be studied = 709
The solution for the given equation is a = -5.
<h3>
What is an equation?</h3>
- An equation is a formula in mathematics that expresses the equality of two expressions by connecting them with the equals sign =.
To find the solution to the given equation:
Negative (5 minus (a + 1)) = 9 minus (5 minus (2a minus 3)) can be expressed mathematically as follows.
- - (5 - (a + 1)) = 9 - (5 - (2a - 3))
Using the principle of PEMDAS, all the parenthesis values are first solved.
- - (5 - a - 1) = 9 - (5 - 2a + 3)
- -5 + a + 1 = 9 - 5 + 2a - 3
Collect like terms:
- -5 + 1 - 9 + 5 + 3 = 2a - a
- -5 = a
That is a = -5.
Therefore, the solution for the given equation is a = -5.
Know more about equations here:
brainly.com/question/2972832
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The correct question is given below:
What is the solution to the equation Negative (5 minus (a + 1)) = 9 minus (5 minus (2a minus 3))? a = –5 a = –3 a = 3 a = 5
