Answer:
<u>x = 8√2</u>
Step-by-step explanation:
As the opposing side of the angle and the hypotenuse are given, take the sine ratio of the angle.
- sin 45° = x/16
- 1/√2 = x/16
- x = 16 / √2
- x = 16√2 / 2
- <u>x = 8√2</u>
42
Step-by-step explanation:
<em>I added 11+12+10+9=42</em>
Answer: D this would be after you have simplified it.
Step-by-step explanation:
Answer:
a.) First check on the height of the bar that ranges between 20 and 24 which is 6. The 6 is the number of students who bought 20 books or more, so get the percentage of those students who bought 20 or more books; divide 6 which is the number of students who bought 20 books or more with the total number of students which is 40 then multiply with 100.
% of students who bought 20 or more books = 6/40 ×100
=15
Step-by-step explanation:
b.) Find the area of a trapezium
= 1/2 × {a+b} × h
= 1/2 × {9 + 13} ×12
= 132
= 1/2 × {13 + 6} × 12
= 108
Mean no. of books bought = 132 + 108
= 240
