Answer:
a) 9 km
b) 18 km
c) She runs at a constant speed of 9 km/h
Step-by-step explanation:
By Sine Rule,
x/sin30° = 8/sin90°
x/0.5 = 8/1
So x = 4.
Answer:
48 cubic feet of mulch
Step-by-step explanation:
12 feet long x 4 feet wide x 1 foot deep of mulch= 48 cubic feet of mulch
6 x 5 x 7 = 210
The volume formula is length x width x height :)
1/2 *(a+b)-(a-b)²
a=18, b=14
1/2 *(18+14)-(18-14)²=1/2 *(18+14)-(18-14)²= 1/2*32-4²=16-16=0
answer D
answer B
2 factors have 2 terms: (x+4) and (y+4)