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Gelneren [198K]
3 years ago
8

How long would it take the two trains to meet?

Mathematics
1 answer:
tiny-mole [99]3 years ago
7 0

Answer: 2.5 hours.

Step-by-step explanation:

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A ship leaves post and sails 12 km west, then 19 km north.approximately how far is the ship from the port
Anna71 [15]

To do this problem, you need to use the Pythagorean thermion I think.

Here is what I got as an answer 

22.5 km

4 0
3 years ago
Complete the solution of the equation. Find the value of y when x equals -10
Artist 52 [7]
Y=2

EXPLANATION:

2(-10)-9y=-38

-20-9y=-38

-9y=-18

y=2
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3 years ago
Hey i got banned on my first account for no reason
babymother [125]

Answer:

sad life

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Write a verbal phrase for each of the following algebraic expressions.
Scrat [10]

Answer:

a. the product of 11 and x

b. 9 greater than x

c. x less than 18

d. the product of 4 and the difference of x and 3

Step-by-step explanation:

3 0
3 years ago
Evan tosses a ball from the roof of a building. The path of the ball can be modelled
DiKsa [7]

Answer:

Please find attached sketch of the path of the ball, having plot area and plot points, created with MS Excel

Step-by-step explanation:

Question;

The equation representing the path of the ball obtained from a similar question posted online are;

h₁ = -4·(t + 1)·(t - 5), h₂ = -4·(t - 2)² + 36, h₃ = -4··t² + 16·t + 20

The above equations represent the same path

The equation, h₁ = -4·(t + 1)·(t - 5), gives the roots of the height function, h(t), used in determining the height of the ball after time <em>t</em>

At (t + 1) = 0 (t = -1) or at (t - 5) = 0 (t = 5), the ball is at ground level

The ball reaches the ground, is at ground level at t = 1, and at t = 5 seconds after being tossed, where h(t) = 0

The equation of the path of the ball in vertex form, y = a·(x - 2)² + k, is h₂ = -4·(t - 2)² + 36, where, by comparison, we have;

The vertex of the ball = The maximum height reached by the ball  = (h, k) = (2, 36)

The coefficient of the quadratic term, t², is negative, therefore, the shape of the parabola is upside down, ∩, shape

The sketch of the path of the ball created with MS Excel, used in plotting the vertex, the initial value and the root points of the parabola, through which the ball passes and joining of the points with a 'smooth' curve is attached

5 0
3 years ago
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