Answer:
<h2>A. $97.50</h2>
Step-by-step explanation:
<h3>Step 1: Add all the numbers together</h3>
123 + 89 = 212
56 + 33 = 89
<h3>Step 2: Multiply</h3>
212 x $0.25 = $53.00
89 x $0.50 = $44.50
<h3>Step 3: Add</h3>
$53.00 + $44.50 = $97.50
Answer is a. $97.50
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Answer:
angle of refraction at first surface is 22.74°
Step-by-step explanation:
Given data
thickness = 1.50 cm
n = 1.52
angle = 36.0°
to find out
angle of refraction at first surface
solution
we will apply here Snells law that is
n1 sinθ1 = n2 sinθ2
θ2 = sin^-1 ( n1/n2) sin θ1
here n1 is 1 and n2 is 1.52 and θ1 = 36.0°
θ2 = sin^-1 ( n1/n2) sin θ1
θ2 = sin^-1 ( 1 / 1.52 ) sin36
θ2 = 22.74°
angle of refraction at first surface is 22.74°
Answer:
The approximate length of segment EF is 7 unit
Step-by-step explanation:
Given figure is the graph having E and F coordinate
The coordinate of point E = (
,
) = ( - 2 , -4 )
The coordinate of point F = (
,
) = ( 2 , 2 )
Let The distance between the points E and F = D
So, D = ![\sqrt{(x_2 - x_1)^{2} + ( y_2 - y_1 )^{2} }](https://tex.z-dn.net/?f=%5Csqrt%7B%28x_2%20-%20x_1%29%5E%7B2%7D%20%2B%20%28%20y_2%20-%20y_1%20%29%5E%7B2%7D%20%7D)
or, D = ![\sqrt{(2 - (- 2 ))^{2} + ( 2 - ( - 4 ))^{2} }](https://tex.z-dn.net/?f=%5Csqrt%7B%282%20-%20%28-%202%20%29%29%5E%7B2%7D%20%2B%20%28%202%20-%20%28%20-%204%20%29%29%5E%7B2%7D%20%7D)
Or, D = ![\sqrt{( 4 )^{2} + ( 6 )^{2} }](https://tex.z-dn.net/?f=%5Csqrt%7B%28%204%20%29%5E%7B2%7D%20%2B%20%28%206%20%29%5E%7B2%7D%20%7D)
or, D = ![\sqrt{16 + 36}](https://tex.z-dn.net/?f=%5Csqrt%7B16%20%2B%2036%7D)
∴ D = ![\sqrt{52}](https://tex.z-dn.net/?f=%5Csqrt%7B52%7D)
I.e D = 7.21 unit
So, Approximate value of D = 7 unit
Hence The approximate length of segment EF is 7 unit . Answer
7 is a multiple of 14. 7 can divide 14 perfectly without any remainder