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SVEN [57.7K]
3 years ago
6

Complete the equation. (-1)^39=?

Mathematics
2 answers:
GalinKa [24]3 years ago
7 0

Answer:

  -1

Step-by-step explanation:

The total number of minus signs is odd, so the product is negative.

  (-1)^39 = -(1^39) = -1

dusya [7]3 years ago
6 0

Answer:

See below

Step-by-step explanation:

So for this one we can estimate

-1^1=-1

-1^2=1

-1^3=-1

............

And so on

The pattern shown here is that if it is odd then the answer is -1 and the answer is 1 if it is even

So think..

Is 39 odd or even?

39 is odd so the answer is -1

Also you can calculator it

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Answer:

y= -2/3x-2

Step-by-step explanation:

Since we have a point and a slope, we can use the point slope formula

y-y_{1} =m(x-x_{1})

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y1 is the y coordinate of the point. In this case, it is -2

x1 is the x coordinate. In this case it is 0.

We can substitute these values into the formula

y- -2= -2/3(x-0)

Distribute -2/3

y+2 = -2/3*x + -2/3*0

y+2= -2/3x+0

Subtract 2 from both sides. We want to get y by itself. This is because we want our line to be in y=mx+b form.

y+2-2= -2/3x+0-2

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In a laboratory, 3 technicians are analyzing the active ingredient in the product vials. Amir, Betty, and Carlos analyze 0.55, 0
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Answer:

The probability is    P(C | I) =  0.025    

Step-by-step explanation:

From the question we are told that

      The  proportion analyzed by  Amir is  P(A) =  0.55

      The proportion analyzed by  Betty is  P(B)  =  0.30

     The  proportion analyzed by  Carlos is  P(C) =  0.15

     The inaccuracy by  Amir  is   p = 0.6% =  0.006

     The inaccuracy by  Betty  is  b = 0.4% = 0.004

    The inaccuracy by  Carlos  is c = 0.1% =  0.001

Generally the probability of inaccurate analysis is mathematically represented as

     P(I) =  P(A) *  p  +  P(B) *  b  +  P(C) *  c

=>  P(I) =  0.55 * 0.006  +  0.30  *  0.004  +  0.15  *  0.001

=>  P(I) =  0.006

Generally the probability that an inaccurate analysis, detected at final verification, was conducted by Carlos is mathematically represented as

       P(C | I ) =  \frac{P(C) *  c}{P(I)}

=>     P(C | I) =  \frac{   0.15  *  0.001}{ 0.006}

=>     P(C | I) =  0.025    

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