The shape below is formed from a rectangle measuring 13cm and 16cm from which a rectangle of length 7.3cm has been removed. Work out the perimeter of the shape

Perimeter of newly formed rectangular shape = 43.4 cm.

Step-by-step explanation:

Rectangle measuring 13 cm × 16 cm

Length = 13 cm

Breadth = 16 cm

Removing 7.3 cm from the rectangle

⇒ 13 cm - 7.3 cm

⇒ 5.7 cm

New Length = 5.7 cm

Finding the perimeter of rectangle

Perimeter of rectangle  = 2 ( L+B )

⇒ 2 ( 5.7+16 )

⇒ 43.4 cm

Perimeter of newly formed rectangular shape = 43.4 cm.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared