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IgorC [24]
3 years ago
9

When specific frequencies of______are absorbed by a material, it forms an absorption spectrum.

Mathematics
1 answer:
EastWind [94]3 years ago
7 0

Answer:

B. light

Step-by-step explanation:

When specific frequencies of light are absorbed by a material, it forms an absorption spectrum.

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Please help! Will give brainlist if correct! :(
raketka [301]

Answer:

Rounding can be referred to as a replacement of a number with another number that is equivalent to it. Rounding can be used to shorten a given number without depriving it of its original value. For example, we have to round 56.89. We can round it as replacing it with 57 which is the closest value to 56.

Rounding numbers isn't that difficult task. In fact, it's quite interesting and easy to do. For rounding, all you are required to do is to figure out which decimal place of the number you want to round off. There are different methods to round off numbers. You can round off numbers to Half Up/Down, Round-Up/Down Round Half to Even/Odd, and So on. Anyhow, here, we are concerned with "To What Place You Want to Round Off a Number". This can be illustrated.

To know how rounding calculator works you just have to understand the way the numbers are rounded off to a particular decimal place. Following is a list of the places to which a number can be rounded off: 1. Ones 2. Tens 3. Hundreds 4. Thousands 5. Ten Thousands 6. Millions 7. Tenths (1 decimal place) 8. Hundredths (2 decimal place) 9. Thousandths ( 3 decimal place) 10. Ten Thousandths (4 decimal place) 11. Hundred Thousandths (5 decimal place) 12. Millionths (6 decimal place)

Step-by-step explanation:

3 0
3 years ago
Solve for x and y. (Geometry) <br> Can you also show the steps of how u did it
Kazeer [188]

Answer:

y = 10

x = 25

Step-by-step explanation:

From the U theorem the sum of these two angles 120+2x+y = 180

same goes for the bottom part too:

2x-y+140 = 180 now add two equations up

120+2x+y + 2x-y+140 = 180 + 180 add like terms (-y will eliminate +y)

4x + 260 = 360 subtract 260 from both sides

4x = 100 divide both sides by 4

x = 25 since the sum of 2x-y+140 = 180 we can find the value of y by replacing x with 25

2*25 - y + 140 = 180

50 - y + 140 = 180 add like terms

190 - y = 180 subtract 190 from both sides

-y = -10 and y = 10

8 0
3 years ago
NORTH RIDGE MIDDLE SCHOOL collected 5,022 cans of food for food drive. Each of the 18 homerooms collected the same number of can
Diano4ka-milaya [45]

Answer:

5022 estimate= 5020  

18 estimate= 20

So, 5022/20

=251

Step-by-step explanation:

The questions says "about" so that means you have to estimate. First, you estimate the cans, then, you estimate the homerooms = 5022 and 20. Last, you have to divide, 5022/20

=251

Hope it helped!:)

4 0
3 years ago
The system of equations y = negative one-half x + 4 and y = 2x – 1 is shown on the graph below. On a coordinate plane, 2 lines i
podryga [215]

Answer:

Option A.

Step-by-step explanation:

The given system of equations is

y=-\dfrac{1}{2}x+4

y=2x-1

If a graph represents a system of equations which has two equation, then the intersection point of two curves is the solution of that system of equations.

It is given that, the graph of both lines intersect at (2, 3) on a coordinate plane.

Therefore, the solution of given system of equation is (2,3).

Hence, the correct option is A.

4 0
3 years ago
Read 2 more answers
2.0 hours and travels 5.0 km what's the average of speed?
disa [49]
Average speed = 5/2 = 2.5 km/h
7 0
3 years ago
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