Answer:
trapezium that is the answet
1 guest = 500ml
7 guests = 500ml × 7 = 3500ml = 3.5litres
1 litre = $1.50
0.5 litre = $1.50 ÷ 2 = $0.75
3.5litres = $1.50 + $1.50 + $1.50 + $0.75 = $5.25
answer is $5.25
Answer:
Option D is correct, i.e. (4xy - 3z)² = 16x²y² -24xyz + 9z², a perfect square trinomial.
Step-by-step explanation:
Given the expression is (4xy - 3z)².
Using the formula, (a - b)² = a² -2ab +b².
(4xy - 3z)² = (4xy)² -2(4xy)*(3z) + (3z)²
(4xy - 3z)² = 16x²y² -24xyz + 9z²
It is a trinomial expression and we got it from squared binomial.
Hence, option D is correct, i.e. (4xy - 3z)² = 16x²y² -24xyz + 9z², a perfect square trinomial.
The number of records that each file drawer can hold = 50 clients
The number of drawers in each cabinet = 5
Total number of clients that the office has = 600
The total number of files that a cabinet can hold = 50 * 5
= 250
Then
The number of cabinets that needs to be ordered = 600/250
= 12/5
= 2 2/5
So 3 cabinets need to be ordered by the company. I hope the procedure is clear enough for you to understand.