Answer:
We need to sketch the problem first.
Find the size of angle R.
One member travels a distance of 12km due north. Another team member heads 50degree east of north and travels a distance of 10km.
If se substute 50° of 180 we have
180-50=130°
The distance between the two team members is the missing side.
We know two sides and included angle, so we use the cosine rule.
A2+b2+c2-2bcCosA
= 102+122-(2x10x12xcos130°)
=100+144-(-147.08)
=100+144+147.08
=391.08
A==SQRT391.08
=19.775
19.7km
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
To get for the taxi accidents in 1998, we must note that x =
8. Therefore using the equation y=−143.3x2+1823.3x+6820 , we can
calculate for the number of taxi accidents.
y = -143.3 * (8)^2 + 1823.3 * 8 + 6820
y = 12,235.2
There were about 12,235 taxi accidents in 1998.
