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nikitadnepr [17]
3 years ago
6

The wavelength of a wave on a string is 1.2 meters. If the speed of the wave is 60 meter/second, what is the frequency

Mathematics
2 answers:
blondinia [14]3 years ago
8 0
Frequency (f) in Hz = Wave speed (c) in m/s/Wavelength in m

Wave speed = 60 m/s, Wavelength = 1.2 m

Therefore,
f= 60/1.2 = 50 Hz
lawyer [7]3 years ago
3 0
The Answer is 50 hertz
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Which of these statements describes a rebate?
sesenic [268]

The following statement describes a rebate -  

A.) The Shopper receives a discount now and pays sales tax on the discounted price of the item.

Explanation:

This option is correct because a rebate is described as a discount and one gets its benefit when one pays the tax on the discounted item. The discount is given at the same moment and the tax is paid on the same price.

8 0
3 years ago
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An electrician charges $53 per hour and his apprentice charges $22 per hour. On a job wiring a house the electrician worked four
forsale [732]

Answer:

<h2>$503.5</h2>

Step-by-step explanation:

let the apprentice duration of work be x hours

so that the electrician worked (x+4)hours

53*(x+4)+22*x=624.50

opening the bracket we have

53x+212+22x=624.50

collect like terms we have

53x+22x+212=624.50

75x+212=624.50

75x=624.50-212

75x=412.5

divide both sides by 75 we have

x=412.5/75

x=5.5

The electrician worked a total of (x+4)

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given that the electrician earns $53 per hour

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7 0
3 years ago
Which of the following is considered to be a
loris [4]

Answer:

A: A square

Step-by-step explanation:

7 0
2 years ago
A measurement that closely agrees with accepted values
bixtya [17]

A measurement that closely agrees with an accepted value is best described as a numerical

3 0
3 years ago
Use the geometric mean to find the 7th term in a geometric sequence if the 6th term is 12 and the 8th term is 27. 20 19.5 18 17
Lesechka [4]
A₆ =12

a₇ = ?? = x

a₈ 27

In this case x is the geometric mean & as per the formula
geometric mean of 2 numbers =√(a₆ * a₈) = √(12*27)
& x=18.
Proof:
Find the common ratio between a₇ & a₆ ==> = ( x) / 12
now find the common ration between a₈ & a₇ ===> =27 / (x)
x/12 = 27/x ===> x² = 12*27 ==> x² = 324 & x =√324 = 18
7 0
3 years ago
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