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White raven [17]
3 years ago
8

In the case of normally distributed classes, discriminant functions are linear (straight lines, planes, and hyperplanes for two-

, three-, and n-dimensional feature vectors, respectively) when the covariances matrices of corresponding classes are equal.
a. True
b. False
Mathematics
1 answer:
PIT_PIT [208]3 years ago
3 0

Answer:

True

Step-by-step explanation:

When covariance matrices of corresponding class are identical and diagonal matrix and their class probability is same then the class is normally distributed and its discriminant functions are linear.

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EASY question for y’all mathy people, multiple choice. Ez points, question in photo
kykrilka [37]

Answer: c

Step-by-step explanation:

4 0
4 years ago
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As the moon revolves around the earth, the side that faces the earth is usually just partially illuminated by the sun. The phase
lys-0071 [83]

Answer:

a)   0∘ and  360∘

b)   300∘ and  60∘

c)   90∘ and  270∘

d)   180∘

Step-by-step explanation:

θ(0<=θ<=360∘)

then

a)

F=1/2(1−cosθ)

Putting F= 0

we get

0 = 1/2 (1−cosθ)

(1−cosθ) = 0

cosθ = 1

θ = cos^-^1 (1)

 = 0∘ and  360∘

b) If F = 0.25

then putting values

1/4 = 1/2 (1−cosθ)

(1−cosθ) = 1/2

cosθ = 1/2

θ = cos^-^1 (1/2)

 = 300∘ and  60∘

c) If F = 0.5

then  putting values we get

1/2 = 1/2 (1−cosθ)

(1−cosθ) = 1

cosθ = 0

θ = cos^-^1 (0)

 = 90∘ and  270∘

d) If F = 1

then  putting values we get

1 = 1/2 (1−cosθ)

(1−cosθ) = 2

cosθ = -1

θ = cos^-^1 (-1)

 = 180∘

So after these calculation we determine the vales of angles that are given uper.

7 0
4 years ago
NEED ANSWER ASAP! 50 PTS!
azamat

Answer:

f(x) = 7 sin 8x + 3 ⇒ 1st answer

Step-by-step explanation:

* Lets revise the trigonometry translation  

- If the equation is y = A sin (B x + C) + D  

* A is the amplitude  

- The amplitude is the height from highest to lowest points and  

  divide the answer by 2  

* The period is 2π/B  

- The period is the distance from one peak to the next peak

* C is the horizontal shift  

- The horizontal shift is how far the function is shifted to left  

  (C is positive) or to right (C is negative) from the original position.  

* D is the vertical shift  

- The vertical shift is how far the function is shifted vertically up

  (D is positive) or down (D is negative) from the original position.  

- The equation of the mid-line is y = D

* Now lets solve the problem

∵ f(x) = A sin(Bx + C) + D

∵ The amplitude is 7

∴ A = 7

∵ The period is 2π/B

∵ The period is π/4

∴ 2π/B = π/4 ⇒ divide both sides by π

∴ 2/B = 1/4 ⇒ Use cross multiplication

∴ B × 1 = 2 × 4

∴ B = 8

∵ The equation of the mid-line is y = D

∵ The equation of the mid-line is y = 3

∴ D = 3

- There is no mention for C

∴ C = 0

∴ f(x) = 7 sin 8x + 3

7 0
4 years ago
If (x) and f-1(x) are inverse functions of each other and f(X) =2X+5 what is f-1(8)
Sedaia [141]
F(x)=2x+5
We can rewrite as y = 2x +5.
We need to find x.
y=2x+5
y-5 = 2x
x=(y-5)/2

Now we need exchange y by x, and x by y.
x=(y-5)/2
y=(x-5)/2

f⁻¹(x)= (x-5)/2
f⁻¹(8)= (8-5)/2= 3/2 =1.5

f⁻¹(8)=3/2 or f⁻¹(8)=1.5
3 0
3 years ago
PLEASE HELP!!!! NO LINKS PLEASE!!!!
gulaghasi [49]

Answer: 7

Step-by-step explanation:

8 0
3 years ago
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