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3 years ago

If a train travels 80 m/s in two hours and 20 minutes, how far has it traveled?

Mathematics

1 answer:

Alexxx [7]3 years ago

8 0

Answer:

distance = 585600 m

Step-by-step explanation:

change 2 hours 20 minutes to seconds

2 hrs * 60 minutes/1hr * 60 sec/min = 7200 sec

20 minutes * 60 sec/min = 120 sec

2 hr 20 min = 7320 seconds

distance = rate * time

distance = 80 m/s * 7320 s = 585600 m

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Please help!!! Intersection of chords use formula a•b=c•d

scoray [572]

Given:

Length of chords of one segment = 11 and 8

Length of chords of other segment = 2 and x

To find:

The value of x.

Solution:

If two chords intersect each other inside a circle, the products of length their segments are equal.

$\Rightarrow a \cdot b =c \cdot d$

$\Rightarrow 11 \cdot 8 =2 \cdot x$

$\Rightarrow 88 =2x$

Divide by 2 on both sides.

$$\Rightarrow\frac{88}{2} =\frac{2x}{2}$

$$\Rightarrow 44 =x$

Switch the sides.

$$\Rightarrow x=44$

The value of x is 44.

5 0

4 years ago

Alanah is picking up two friends to go to a concert. She drives from her house to pick up Mia, then she drives to pick up Teresa

Ksivusya [100]

Answer:

Total distance = 30.3 units

Step-by-step explanation:

Coordinates for the location of Alanah, Mia, Teresa and Arena are,

Alanah → (2, 8)

Mia → (8, 16)

Teresa → (8, 2)

Arena → (14, 4)

Distance between two points $(x_1,y_1)$ and $(x_2,y_2)$ is given by the formula,

d = $\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$

Distance between Alanah and Mia = $\sqrt{(16-8)^2+(8-2)^2}$

= $\sqrt{100}$

= 10 units

Distance between Mia and Teresa = $\sqrt{(16-2)^2+(8-8)^2}$

= 14 units

Distance between Teresa and Arena = $\sqrt{(4-2)^2+(14-8)^2}$

= $\sqrt{40}$

= 6.3 units

Total distance of Alanah's trip to Arena = 10 + 14 + 6.3

= 30.3 units

3 0

3 years ago

Read 2 more answers

Please answer my question please

Sav [38]

Answer:

45/4;A

Step-by-step explanation:

1/4*(the volumeof the prism)

1/4*(5*3*3)=45/4

8 0

3 years ago

What is the relationship between <3 and <6?

Studentka2010 [4]

we know that

Alternate interior angles are two interior angles which lie on different parallel lines and on opposite sides of a transversal. Alternate interior angles are congruent.

m∠3=m∠6 -------> by alternate interior angles

therefore

the answer is the option

Alternate interior angles

5 0

3 years ago

Read 2 more answers

What numbers multiply to get -48 and add to get -2

mamaluj [8]

Answer:

6 and -8

Step-by-step explanation:

6*-8=-48

6+(-8)=-2

4 0

1 year ago