Answer:
13
Step-by-step explanation:
First, fill in 3 boxes of the table using the given information (blue numbers on the attached table)
"Of the 32 students that have a cell phone, 19 students do not have a tablet."
The top row of the table is students who have a cell phone. Therefore, place 19 in the box in this row that is in the "no tablet" column.
"Of the 70 students that have a tablet, 57 students do not have a cell phone."
The first column of the table is students who have a tablet. Therefore, place 57 in the box in the 2nd row of this column.
"11 students do not have a cell phone or a tablet."
Find the "no cell phone" row and the "no tablet" column and place 11 in the box that coincides.
We can calculate the blank totals using addition (shown by green numbers on the attached table)
- Total students with no cell phone = 57 + 11 = 68
- Total students with no tablet = 19 + 11 = 30
To calculate the number of students who have a cell phone AND a tablet:
⇒ Total students with a cell phone <em>minus</em> students with a cell phone but no tablet
⇒ 32 - 19 = 13
The answer would be 3z(5x + 7y)
Im guessing those are those brackets?
Answer:
<h3>

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Step-by-step explanation:
The SI unit of work is Joule.
Further more explanation:
▪️
⇒Work done by a force acting on a body is defined as the product of force and displacement of the body in the direction of the force.
▪️
⇒The system of units which is agreed by the international convention of scientists held in France in 1960 is called SI unit.
▪️
⇒One joule is the amount of work done when one Newton force displaces a body through one metre in its own direction.
Hope I helped!
Best regards!
Basically it means judging if something is right.