Step-by-step explanation:
A =1/2(a+b)h
hope it helps.
Answer:
x = 4
Step-by-step explanation:
DE is parallel to AC and intersects the other 2 sides. It divides those sides proportionally, that is
=
, thus
=
( cross- multiply )
2(10 - x) = 3x ← distribute left side
20 - 2x = 3x ( subtract 3x from both sides )
20 - 5x = 0 ( subtract 20 from both sides )
- 5x = - 20 ( divide both sides by - 5 )
x = 4
Answer:
87.48
Step-by-step explanation:
First find the area of the square
12^2=144
find area of the 2 circles
9*3.14
but theres 2
18*3.14=56.52
144-56.52=87.48
Speed limits are used in most republics to set
the greatest speed at which road cars may legally journey on specific stretches
of road. In the problem, the car is moving 60 mph and was speeding over 5mph
above the speed limit. So therefore, 60 – 5 = 55mph is the speed limit for this
road.