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galina1969 [7]
2 years ago
8

LeAnn wants to giftwrap a present she got for her little brother. How many square inches of giftwrap will be needed to cover a b

ox that is 5in x 7in x 3in?

Mathematics
2 answers:
Step2247 [10]2 years ago
6 0
Posted a picture showing the solution. Everything is on it, including calculations.
The answer is 142 square inches (or 142 in.^2) same thing.

Hope this helps!

Shtirlitz [24]2 years ago
5 0

6 sides to a cube

 2 are 5*3 = 15*2 = 30

2 are 5*7 = 35*2=70

2 are 3*7 = 21*2=42

30+70+42 = 142 square inches total area

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What is/are the solution(s) of the system of equations? Why you say that is the solution? Write your answer in complete sentence
Alexus [3.1K]
Answer: The answer to a system of equations is the point(s) of intersection of the equation involved. 

When you have more than one equation with more than one variable, you have a system of equation. The solution(s) is the set of values for each variable that satisfy the equations. This means that the inputting values make the equations true.
6 0
3 years ago
Easy question right here!
Bad White [126]
12 glad I could help!
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9+4^2/8x3<br><br> What does this equal ?
tamaranim1 [39]
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2 years ago
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Find the area of a circle with a diameter of 8 in. Rounded to the nearest tenth. Use 3.14 for π.
rodikova [14]

Answer:

50.2 in^2

Step-by-step explanation:

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7 0
3 years ago
drag the gray arrow so that it is pointing midway between horizontal and vertical, heading downward and toward the right. extend
alex41 [277]

The speed of the star as compared to the speed of the star relative to earth is the frequency of light emitted by the source.

A star moving away from the observer (say on Earth) will have its emitted light red-shifted (move to lower frequency), i.e., the spectrum moving to left if we consider the intensity of light is plotted as a function of frequency with the frequency increasing from left to right.

A star moving towards the observer (say on Earth) will have its emitted light blue-shifted (move to higher frequency), i.e., the spectrum moving to the right if we consider the intensity of light is plotted as a function of frequency with the frequency increasing from left to right.

A star moving perpendicular to the observer (say on Earth) will have its emitted light will no change with respect to the spectrum of the stationary star.

These are due to the Doppler effect, the equation of frequency detected by the observer as

f_o = f_s\sqrt{\frac{1-\beta }{1+\beta } } where \beta = \frac{v}{c}, v the relative velocity of the moving source (the star here), f^s is the frequency of light emitted by the source.

Hence the answer is the speed of the star as compared to the speed of the star relative to earth is the frequency of light emitted by the source.

To learn more about frequency click here brainly.com/question/26177128

#SPJ4

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10 months ago
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