In the periodic table there are 11 metalloids
If 14 of the 50 fish were trout, we can write this as a fraction; 14/50.
To get this into an easier-to-understand form, we can multiply both sides by 2, giving us a fraction of 28/100. This means that 28 out of 100, or 28% of fish, will be trouts, at least for a rough expectation.
From there, we can multiply 28%, the percentage of trout, by 7,500, the total amount of fish in the lake.
7,500 x 28% = 2,100
Therefore, we can roughly expect about 2,100 of the fish in the lake to be trout.
Hope this helps! :)
Answer:
a) m = -6/5
b) m = -5/6
Step-by-step explanation:
The slopes of parallel lines are the same. The parallel line will have a slope equal to that of the line it is parallel to, -6/5.
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The slopes of perpendicular lines are the opposite of the reciprocal of one another. The perpendicular line will have a slope that is the negative reciprocal of the slope of the one it is perpendicular to: -1/m = -1/(6/5) = -5/6.
z= r(cosθ+i sinθ) is the required polar form where, r = √41 and θ =π- ![tan^{-1} (\frac{5}{4} )](https://tex.z-dn.net/?f=tan%5E%7B-1%7D%20%28%5Cfrac%7B5%7D%7B4%7D%20%29)
Step-by-step explanation:
Given,
-4+5i is a complex number.
To find the polar form.
Formula
z=x+iy
r² = mod of (x²+y²)
θ = ![tan^{-1} (\frac{y}{x} )](https://tex.z-dn.net/?f=tan%5E%7B-1%7D%20%28%5Cfrac%7By%7D%7Bx%7D%20%29)
So, the polar form will be z=r(cosθ+i sinθ)
Now,
r² =(-4)²+5² = 41
or, r = √41
θ =π-
[ since the point is in second quadrant]
Hence,
z= r(cosθ+i sinθ) is the required polar form where, r = √41 and θ =π- ![tan^{-1} (\frac{5}{4} )](https://tex.z-dn.net/?f=tan%5E%7B-1%7D%20%28%5Cfrac%7B5%7D%7B4%7D%20%29)
24 23/100 hope this helped