jayjayw64

20.03.2022 • 

Mathematics

A truck travels from a factory to a gas station in 4 minutes. It stops at the gas station for 2 minutes. The truck then returns to the factory in 4 minutes. Which graph best represents the distance, y, in miles, of the truck from the factory after a certain amount of time, x, in minutes? (5
points)
O a
y
10
9
8
7
Truck's
6
Distance from 5
Factory
4
(mi)
3
2
1
0
1 2 3 4 5 6 7 8 9 10
Time (min)
у
b
10
9
8
7
Truck's
6
Distance from 5
Factory
4
(mi)
3
2
1
0 1 2 3 4 5 6 7 8 9 10
Time (min)
у
Oc
10
9
8
7
Truck's
6
Distance from 5
Factory
4
(mi)
3
2
1
0 1 2 3 4 5 6 7 8 9 10
Time (min)
Od
у
A
10
9
8
7
Truck's 6
Distance from
5
Factory
4
(mi)
3
2
1
0 1 2 3 4 5 6 7 8 9 10
Timo (min)

Ответ:

Kigarya

01.10.2022

Mathematics

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1. You must apply the Secant and Tangent segment theorem, which establishes:

 Tangent²=(The whole secant segment)(External secant segment)

 2. The whole secant segment is: AD=a+12

 3. The external secant segment is: BD=10

 4. The tangent segment is: DE=12

 5. Then, you have:

 DE²=ADxBD
 12²=(a+10)10
 10(a+10)=12²

 6. Therefore, the answer is the third option: 10(a+10)=12²

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