4x^2+5=8x what is the answer in standard form
1 answer:
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Answer:
<u>Distance formula between points (x₁, y₁) and (x₂,y₂) is:</u>
- d =
<u>Substitute (x₁, y₁) with (6, 5), (x₂,y₂) with (x, y) and d with 5:</u>
- 5 =
Correct choice is A
Answer:
183 miles to the nearest mile.
Step-by-step explanation:
Distance =Speed X Time
Distance of Truck B from point A=45 X2 =90 miles
Distance of Truck C from point A=55 X2 =110 miles
Angles between them, BAC=132°
We want to find the Distance BC denoted by a between the trucks.
Using Cosine Rule,
a²=b²+c²-2bcCos A
=90²+110²-(2X90X110XCos132°)
=33448.79
a=√33448.79
BC=182.89 miles
The distance between the trucks is 183 miles to the nearest mile.
