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xxTIMURxx [149]
3 years ago
7

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

Mathematics
1 answer:
Misha Larkins [42]3 years ago
6 0

Answer:

x = 3/8 (but the fraction is negative.)

Decimal form if needed.

x = - 0.375

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Two planes are flying away from Toronto Pearson International Airport. The Air Canada
erica [24]

Answer:

1832 miles

Step-by-step explanation:

First we need to find the angle between the routes of the planes.

If one is N30°W and the other is S45°W, we can find the angle between the routes with the following equation:

30 + angle + 45 = 180

angle = 105°

Then, we need to find the distance travelled by each plane, using the formula:

distance = speed * time

The time is 1.5 hours, so we have that:

distance1 = 800 * 1.5 = 1200 km

distance2 = 750 * 1.5 = 1125 km

Now, to find the distance between the planes, we can use the law of cosines:

distance^2 = 1200^2 + 1125^2 - 2*1200*1125*cos(105)

distance^2 = 3356214.43

distance = 1832 miles

5 0
3 years ago
Terms with the same variables
Morgarella [4.7K]
The terms with the same variables is called like term
7 0
3 years ago
Read 2 more answers
Solve for X, 4x+5=17
Anettt [7]

Answer:

x=3

Step-by-step explanation:

4x=17-5

4x=12

x=4/12

x=3

7 0
3 years ago
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A small source radiates an electromagnetic wave with a single frequency into vacuum, equally in all directions. As the wave move
vlabodo [156]

Answer:

a) Frequency remains constant

b) Wavelength remains constant

c) speed of the wave remains constant

d) Intensity decreases

e)  amplitude of its electric field decreases

Explanation:

a)  Frequency can be defined as the number of crests that pass a fixed point in the medium in unit time. It is the source of the wave that will determine the frequency. If the small source is changed to a bigger and faster one then the frequency will change. In our case, there is no change of source of wave, so the frequency remains constant.

b) The speed of of the wave is directly proportional to the wavelength. If we double the speed, the wavelength also doubles. Since the speed has not been doubled in our case, the wavelength will remain constant.

c) As indicated in b) since the wavelength is proportional to speed and it has not changed in our case, then the speed remains constant.

d) The intensity of a wave decreases as it moves further away from the source.

e) The intensity is related to the amplitude. Since the intensity decreases, the amplitude also decreases.

5 0
3 years ago
A jar contains 11 red marbles, 12 blue marbles, and 6 white marbles. Four marbles from this jar are selected, with each marble b
Anuta_ua [19.1K]
Answer: Option 2: 0.0563
Total Marbles: 29
Option:
(B/W) • (B/W) • (B/W) • (B/W) • (R)
18/29 • 18/29 • 18/29 • 18/29 • 11/29
= Exact Form: 1154736/20511149
= Decimal Form: 0.05629796
8 0
2 years ago
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