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dexar [7]
2 years ago
13

Determine the next three terms in the following sequence:____, ____, ____,...​

Mathematics
1 answer:
user100 [1]2 years ago
4 0
Idk I have tried and failed miserably
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A train whistle is 580 Hz when stationary. It is coming toward you at 18.8 m/s. What frequency do you hear?
Usimov [2.4K]

Answer:

612 Hz.

Step-by-step explanation:

The frequency of the sound  will be proportionally higher when coming towards you. The increase is related to the speed of the train.

So the frequency will be:  

580 + (580 / 343) * 18.8

=  612 Hz.

This is called the Doppler effect.

4 0
3 years ago
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Which algebraic expression represents this phrase? the product of 86 and the depth of the river
Marizza181 [45]
If "d" is used to represent the depth of the river, that product will be
  86d
6 0
3 years ago
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Solve this math problem
laila [671]
1-.8=.2
za/2=.2/2=.1
invNorm(.1)=1.28
6 0
3 years ago
Help me llliad plz neeeeeeed help
Lapatulllka [165]
Lets get started :)

Diameter = 2.5 ft
Radius = \frac{diameter}{2} = \frac{2.5}{2} = 1.25

a) The Circumference formula of a circle is given in the picture below, we can plug-in the given information

C = 2\pi(1.25) or 2.5\pi
    ≈ 7.85 ft 
(we can leave the answer in terms of pi {\pi})

b) We divide the total number of distance the tire will travel by the circumference to find how many times the tire will roll

\frac{5280}{circumference} = \frac{5280}{2.5 \pi } 
(I have used the value in feet because we found the circumference in feet units and notice that I took the value of circumference to be 2.5\pi instead of 7.85, to increase accuracy)

672.2

The tire will rotate 672 times (a tire cannot roll a decimal times, so we take to the nearest whole number) to travel 1 mile

7 0
3 years ago
Solve for X<br><br> Can you please help
valentina_108 [34]

Answer:

x = 10

Step-by-step explanation:

5x + 19 = 7x - 1 \\ (corresponding \:  \angle s) \\  \\ 5x - 7x =  - 1 - 19 \\  \\  - 2x =  - 20 \\  \\x =   \frac{ - 20}{ - 2}  \\  \\ x = 10

7 0
3 years ago
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