Hich is the joint relative frequency for the people who can only see the sunset?
1 answer:
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Answer:
None of the expressions is simplified to 41.
Step-by-step explanation:
You have to follow the P.E.M.D.A.S., this is:
P:Parentheses first.
E:Exponent next.
M:Multiplication.
D:Division.
(Multiplication and Division is whichever come first, from left to right)
A: Addition.
S: Subtraction.
(Addition and Subtraction is whichever come first, from left to right).
<u><em>We are going to analyze every option:</em></u>
1. 10+ 2.4 - 1
First we have to solve the multiplication:
Now we have to solve the addition and subtraction from left to right:
This is not a correct answer.
2. 10+2.(4-1)
We have to solve the parentheses first:
Now the multiplication and then the addition.
This is not a correct answer.
3. (10+23).4-1
We have to solve the parentheses first:
Now the multiplication and then the subtraction:
This is not a correct option.
4.
We have to solve the parentheses first, in the parenthesis first we have to solve: and then do the multiplication.
Now we have to solve the addition and subtraction from left to right:
This expression is not a correct option.
Then none of the expressions is simplified to 41.
Answer: Write the expression as:
" 70
+
2
* 2
− 18a " ;
______________________________________________________
or; write as:
______________________________________________________
" 70.32 + (2.1) * (2.7) − 18a " ;
______________________________________________________
To simplify:
______________________________________________________
Using "PEDMAS" (the "order of operations") ;
the "multiplication" comes first;
So: → "(2.1) * (2.7) = 5.67 " .
And rewrite:
______________________________________________________
" 70.32 + 5.67 − 18a " .
Now: " 70.32 + 5.67 = 75.99 " ;
So, we can the final simplified expression as:
______________________________________________________
" 75.99 − 18a " ;
or; write as: " 75
− 18a " .
______________________________________________________
" 70
2
______________________________________________________
or; write as:
______________________________________________________
" 70.32 + (2.1) * (2.7) − 18a " ;
______________________________________________________
To simplify:
______________________________________________________
Using "PEDMAS" (the "order of operations") ;
the "multiplication" comes first;
So: → "(2.1) * (2.7) = 5.67 " .
And rewrite:
______________________________________________________
" 70.32 + 5.67 − 18a " .
Now: " 70.32 + 5.67 = 75.99 " ;
So, we can the final simplified expression as:
______________________________________________________
" 75.99 − 18a " ;
or; write as: " 75
______________________________________________________