Answer:
- 1-4.
1. The students' mouths were opened in shock.
2. They could not believe the box's contents.
3. Today's activity is examining plants.
4. Sam's stomach ached from laughing so hard.
-5-8.
5. The classroom's glass doors were closed.
6. The students were using the school's computers.
7. The principal's coughing disturbed the students and their two teachers.
8. The teachers' robots rushed toward the door.
Step-by-step explanation:
Hope it helps :)
sin(2x) = cos(x)
2sin(x)cos(x) = cos(x) Expand sin(2x).
2cos(x) 2cos(x) Divide 2cos(x) on each side.
sin(x) = ¹/₂
sin⁻¹[sin(x)] = sin⁻¹(¹/₂) Use sin⁻¹(x) on each side.
x = 30, 150 Find the answer.
The answer is 21/4 u think
√(25/4) =√(5²/2²) =5/2
Hope it helps you
Answer:
Perimeter 
Step-by-step explanation:
Let 
= width of the rectangle.
From the information "length of a rectangle is 5cm more than width", we can write:
Length = 
- - - -
Perimeter 
(formula for the perimeter of a rectangle)
∴ The expression of the perimeter of the rectangle in terms of is 
.
Hope this helps :)
