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RoseWind [281]
3 years ago
8

A random number generator is selecting numbers in the range 1 through 50. What is the probability that the random number generat

or will select a number that is not multiple of 7
Mathematics
2 answers:
kati45 [8]3 years ago
7 0

Answer:

7,14,21,28,35,42,49 are all dividible by 7. That are 7 Numbers. However we are looking for All the Numbers that are not a multiple of 7.

So 50-7=43.

There are 43 Numbers which are not a multiple of 7.

So 43/50=0.86

The probability is 0.86 or a 86% chance that the generator will select a Number which is not a multiple of 7.

N76 [4]3 years ago
3 0

Answer:

43/50

Step-by-step explanation:

Use the complement rule to find this probability. The complement of this event is the event that the random number generator selects a number that is a multiple of 7. There are 7 multiples of 7 that the generator could possibly select, namely 7,14,21,28,35,42,49, so the probability that the generator will select a multiple of 7 is 750. The probability of the complement is 1−750=4350.

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tresset_1 [31]

Answer:

They are: area of sector and area of triangle

Step-by-step explanation:

Area of segment=area of sector - area of triangle

So we need both the area of sector and area of triangle to calculate for the area of a segment

8 0
3 years ago
The area of a 12-cm- wide rectangle is 180cm. what is its length?
Tcecarenko [31]

Answer:

multiply the legth times width

Step-by-step explanation:

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3 years ago
MARSVECTORCALC6 3.4.020. My Notes A rectangular box with no top is to have a surface area of 64 m2. Find the dimensions (in m) t
ioda

Answer:

We would have

                                    l =w =\frac{8\sqrt{3}}{3} \\h = \frac{8\sqrt{3}}{6}

where " l " is  length, " w"  is width and "h" is height.

Step-by-step explanation:

Step 1

Remember that

         Surface area for a box with no top = lw+2lh+2wh = 64

where " l " is  length, " w"  is width and "h" is height.

 Step 2.

Remember as well that

                              Volume of the box = l*w*h

Step 3

 We can now use lagrange multipliers.  Lets say,

                                    F(l,w,h) = lwh

and

                                g(l,w,h) = lw+2lh+2wh = 64

By the lagrange multipliers method we know that                            

 

                                                     \nabla F  = \lambda \nabla g

Step 4

Remember that

                          \nabla F  = (wh,lh,lw)

and

                      \nabla g = (w+2h,l+2h , 2w+2l)

So basically you will have the system of equations

                              wh = \lambda (w+2h)\\lh = \lambda (l+2h)\\lw = \lambda (2w+2l)

Now, remember that you can multiply the first eqation, by "l" the second equation by "w" and the third one by "h" and you would get

                                   lwh = l\lambda (w+2h)\\\\lwh = w\lambda (l+2h)\\\\lwh = h\lambda (2w+2l)

Then you would get

                      l\lambda (w+2h) = w\lambda (l+2h) =  h\lambda (2w+2l)

You can get rid of \lambda from these equations and you would get

                         lw+2lh = lw+2wh =  2wh+2lh

And from those equations you would get

                                             l = w =2h

Now remember the original equation

                                    lw+2lh+2wh = 64

If we plug in what we just got, we would have

                                 l^{2} + l^{2} + l^2   =  64 \\3l^{2} = 64 \\l = w = \frac{8\sqrt{3} }{3} \\h = \frac{8\sqrt{3} }{6}

                       

                                                 

7 0
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

-2x^2+11

Since there aren't any like terms, the answer would be:

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