What are the answers? I need to see them to help!
(3x-1)+(x+9)+(12x-4)=52
16x+4=52
16x=48
x=3
Answer:
The reflectivity at the boundary of the two grains is 
×
Step-by-step explanation:
Given :
Refractive index of one grains (
) = 1.553
Refractive index of second grains (
) = 1.544
According to the fresnel equation,
∴ general equation of refraction ( reflectivity ) 
where 
= incident angle, 
= transmitted angle
but for normal incidence 
°
so our equation become,
⇒ 
×
Therefor reflectivity at the boundary is given by ×.
Answer:
B. f(x) = 5x - 7
Step-by-step explanation:
✔️Using the table of values given, find the slope (m) and y-intercept (b) of the line of the graph that represents the table, then write the function in slope-intercept form.
✔️Slope (m) using (0, -7) and (2, 3):
Slope (m) = ∆y/∆x
Slope (m) = (3 -(-7))/(2 - 0)
Slope (m) = 10/2
Slope (m) = 5
✔️ y-intercept (b):
b = -7, because where x = 0, y = -7, which is the point where the y-axis is intercepted by the line of the graph.
✔️Write the linear function in slope-intercept form by substituting m = 5 and b = -7 into f(x) = mx + b
Thus:
f(x) = 5x + (-7)
f(x) = 5x - 7
Therefore, the linear function that has a graph that includes all the points in the table would be f(x) = 5x - 7.
Answer:
h= 2 p=1.75 i used elimination method
