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vredina [299]
3 years ago
13

The image shows a ray of light bending at the boundary of a glass block. According to a law of optics, = n, where n is a constan

t. Which equation states the same law in terms of a and b?

Mathematics
1 answer:
UkoKoshka [18]3 years ago
3 0
The formula for the light bend would be n1*sin i= n2 * sin r

If you use "sin (90-x)= cos x" principle, you can change the sin in the equation into
n1*sin i= n2 * sin r
n1 * cos a= n2 * cos b
n2/n1= cos a/ cos b

Assuming the n constant is the ratio of the glass compared to water then the answer would be: cos a/ cos b
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32 is very much need to be answered
vova2212 [387]

Question 32):  

<u>Least To Greatest:</u>

-7/2,    -2.8,   -5/4,  4/3,  1.3

<u>Number of Inputs:   </u>

<u>5</u>

<u>Ascending Order (Least to Greatest)/Smallest to Largest:  </u>

-7/2,    -2.8,   -5/4,  1.3,  4/3

 

<u>Descending Order (Greatest to Least/Largest to Smallest):</u>

4/3, 1.3, -5/4, -2.8, -7/2





Hope that helps!!!                                         : )



3 0
3 years ago
Ryan is looking for the sum of the cube of a number, n, and 16 What is the sum Ryan is looking for if n=2?
mihalych1998 [28]

Answer: The sum =14

Step-by-step explanation:

Given that n=2

And

sum = cube of a number, n, and 16 which can be expressed mathematically as

n^3 + 6

2^3 + 6

8 + 6= 14

6 0
3 years ago
Which one is the answer for these qution 4x=5(9x+2)<br> A)5/2<br> B)41/10<br> C)-10/41<br> D)10/41
stealth61 [152]
C. -10/41

First use the distributive property to get 4x = 45x + 10
Use subtraction on both sides by 10
Again use subtraction of 4x on both sides
You now have -10 = 41x
Use division to get x alone and you now have -10/41 = x
5 0
4 years ago
What is the exact value for the expression the square root of 52− the square root of 13 + the square root of 117 ? Simplify if p
avanturin [10]

√52 -√13 +√117

= 2√13 -√13 +3√13

= 4√13 . . . . matches selection A

_____

√52 = √(4·13) = (√4)(√13) = 2√13

√117 = √(9·13) = (√9)(√13) = 3√13

8 0
3 years ago
What property is being shown?<br><br> 5+(6+3) = (5+6) +3
allsm [11]

Answer:

Algebra

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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