Answer:
C.78 km
Step-by-step explanation:
They are covering the distance at a combined speed of:
30 + 20 = 50 km/h
Distance to be covered:
130 km
Time:
130/50
2.6 hours.
From A:
30 × 2.6
78 km
Answer:
y = 2x + 2
Step-by-step explanation:
Slope: 2/1 = 2
What do you mean by saying below?
The main area formula is A= 5x s x r/ 2
where s is a side
r is the radius, r can be found as following
r is the hypothenuse, so tanα=a/S, where S=s/2=7
tanα=22/7=Pi, so <span>α=arctanPi= 72.3°
</span>for finding r, r = a/sin <span>α=22/sin 72.3°=23
</span>so finally
the area is A= (5x 14x 23 )/2=808
Answer:
The width is 1567m ,and the length is 1573m.
Step-by-step explanation: