Answer:
BC=23
Step-by-step explanation:
Use sine rule:
x/sinX=y/sinY
BC/sinA=AB/sinC
BC/sin61=9/sin20
BC=26.3142396015*sin61
BC=23.0149525338
Answer:140/x=300/(x+40)
300x=140x+40*140
160x=40*140
x=40*140/160=35 mph
ans:
slower speed = 35 mph
faster speed =x+40=75 mph
Step-by-step explanation:
Answer:
- d and f 2.a and c 3.b and e
Step-by-step explanation:
100 sq. ft of the yard is covered with bricks
Step-by-step explanation:
- Step 1: Find the area of the square part of the yard.
Length of the square part = 10 ft
Area of a square = (side length)²
⇒ Area of the yard covered with bricks = 10² = 100 sq. ft