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Vladimir [108]
3 years ago
6

Train A departs from Point A with a velocity of 150 km/h, Train B departs from Point B with a velocity of 100 km/h, and the dist

ance between point A and B is 500 km. How long will it take for the trains to meet?
Mathematics
2 answers:
denis-greek [22]3 years ago
8 0

Answer:

poop

Step-by-step explanation:

ur gay

Mkey [24]3 years ago
7 0

Let us consider the initial position of train A, s_{0A}=0. This implies that s_{0B}=500.

Moreover, we have

v_A=150, \quad v_B=-100

This implies that the two equations are

s_A(t)=150t,\quad s_B(t)=500-100t

The two trains meet if and only if their positions are the same, at the same time:

s_A(t)=s_B(t) \iff 150t=500-100t \iff 250t=500 \iff t=2

So, the two trains meet after 2 hours.

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If f(x) = 3x - 1 and g(x) = x + 2, find (f - g)(x).
Marat540 [252]

Answer:

(f - g)(x) = 2x - 3

Step-by-step explanation:

(f - g)(x) is defined as subtracting the whole g(x) function from the f(x) function.

Hence, we can define it as:

(3x - 1) - (x + 2)

= 3x - x - 1 - 2

= 2x - 3

Therefore, (f - g)(x) = 2x - 3.

Hope this helped!

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MAVERICK [17]
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Step-by-step explanation:

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3 years ago
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olga55 [171]

Answer:

y = x + 1

Step-by-step explanation:

We are using the points (0, 1) and (6, 7). First, use these points to find the slope.

m = y₁ - y₂/x₁ - x₂

⇒ m = 7 - 1/6 - 0

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Now that we know the slope is one, enter the values into the point-slope form equation. I'll use (0, 1) in this instance.

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tamaranim1 [39]

Answer:ya

Step-by-step explanation:

explanation idk

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