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Natalija [7]
3 years ago
8

Expressions with and without Parentheses

Mathematics
1 answer:
Lina20 [59]3 years ago
6 0

Answer:

22.

Step-by-step explanation:

The work is in the photo I attached, I think.

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The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y.
Dmitrij [34]
The relationship between wavelength and frequency is expressed by the equation λν=c where λ is the wavelength, v is the frequency and c is the speed of light which has a value of 3x10^8 m/s.

 λν=c
 λ(3 × 10^9)= 3x10^8
 λ = 0.1 m

Hope this answers the question.
7 0
4 years ago
Read 2 more answers
Theresa earned scores of 88 points, 84 points, 88 points, and 91 points on four tests. What is the lowest score she can get on t
Yanka [14]
So u will do 88+84=172+88=260+91=351 and that is all four tests added up now u have to divide the answer by 4 because it was four tests averages
351/4=87.75 wich is aproxamately 88 
so with all four of them added wich is 351 u will add the answer choices so 351+96=447/5=89.4 wich is aproxamately 89
351+97=448/5=89.6 wich is aproxamately 90
351+98=449/5=89.8 wich is aproxamately 90
351+99=450/5=90
so i would say that 99 points is the one she needs to score because it isnt asking for aproxamately 
so it is 99 points
6 0
3 years ago
Read 2 more answers
Help WILL GIVE BRAINLIEST!!!
aleksandrvk [35]

Answer:

The correct choice is the third answer.

Step-by-step explanation:

The arrow on top of the letters means that they would be parallel.  If you look closely at the diagram, you can see that both QR and TU go in the same direction and will never intersect.

5 0
3 years ago
Ray’s weight increased by 11% in the last two years. If he gained 16.5 pounds, what was his weight two years ago?
kap26 [50]
2 years ago he weighed 119.5 pounds
4 0
3 years ago
Plz help what do i do and how do i do this its due tomorrow
Aleks [24]
In order to find the area, you multiply the width (7), height (6) and length (12). But the problem states that the height has changed from 6 to 6 minus3, which would be 3. So you multiply 3, 7, and 12.
6 0
3 years ago
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