Answer:
57.6159 round if needed
Step-by-step explanation:
We know the length of the triangle which is 298. We know the base of the triangle which is 189.
We need to find angle of elevation so we must use tangent function.

Use inverse tan function

Round if needed.
30 choices for first seat
29 for 2nd
28 for 3rd
27 for 4th
answer is 30*29*28*27=657720 ways
Answer:
Slope of Line 1 = 4/3
Slope of Line 2 = 1/2
Slope of Line 3 = 4/3
For each pairs of lines, determine whether they're parallel, perpendicular or either.
Line 1 and Line 2: neither
Line 1 and Line 3: parallel
Line 2 and Line 3: neither
Answer:
In the episode pertaining to the discovery of radium, it is false that all of the hypotheses turned out to be true.
There are some hypotheses in the episode thay turned out to be false.
<u>Answer:</u> The wavelength for X-rays with the given frequency is 
<u>Step-by-step explanation:</u>
To calculate the wavelength of light, we use the equation:

where,
= wavelength of the light
c = speed of light = 
= frequency of light = 
Putting the values in above equation, we get:

Hence, the wavelength for X-rays with the given frequency is 