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Alexandra [31]
3 years ago
9

The spinner has eight spaces of equal size. What is the mathematical probability of the pointer's stopping in the space marked 1

? If you spin the pointer 40 times, how many times would you expect it to stop on 1?
Mathematics
2 answers:
Advocard [28]3 years ago
6 0

Answer:

10/40

Step-by-step explanation:

serg [7]3 years ago
6 0

Answer:

The probability that the pointer stops on 1 is 1/8, since there are 8 sections.

If you spun it 40 times, you would expect it to land on 1 5 times.

Step-by-step explanation:

There are equal pieces, so the probability of landing on each is the same : 1/8

To find the amount of times you would expect it to land on 1 if you spun it 40 times, simply multiply the probability by 40. 40 * 1/8 = 5.

Hope this helps :)

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Write an equation in point-slope form for the line through the given point with the given slope.
zlopas [31]

Answer:

y+1 = -1(x+10)

Step-by-step explanation:

The point slope equation of a line is

y-y1 = m(x-x1) where m is the slope  and (x1, y1) is a point on the line

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ANSWER !! <br> ILL GIVE 40 POINTS !!<br> DONT SKIP :(( <br> PLUS BRAINLIEST !
Likurg_2 [28]

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85

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4 0
3 years ago
The masses mi are located at the points Pi. Find the moments Mx and My and the center of mass of the system. m1 = 4, m2 = 3, m3
viva [34]

Answer:

M_x= 8

M_y = 6

Therefore the co-ordinate of the center of mass is = (\frac{4}{5},\frac{3}{5})

Step-by-step explanation:

Center of mass: Center of mass of an object is a point on the object. Center of mass is the average position of the system.

Center of mass of a triangle is the centriod of a triangle.

Given that m₁= 4, m₂=3, m₃=3 and the points are P₁(2,-3), P₂(-3,1) and P₃(3,5)

M_x = ∑(mass × x-co-ordinate)

M_y = ∑(mass × y-co-ordinate)

Therefore  

M_x = (4×2)+{3×(-3)}+(3×3)

     =8

M_y = {4×(-3)}+{3×1}+(3×5)

    =6

The x co-ordinate of the center of mass is the ratio of M_x to the total mass.

The y co-ordinate of the center of mass is the ratio of M_y to the total mass.

Total mass (m) = m₁+ m₂+ m₃

                        = 4+3+3

                        =10

The x co-ordinate of the center of mass is \frac {8}{10} = \frac {4}{5}

The y co-ordinate of the center of mass is \frac{6}{10}=\frac{3}{5}

Therefore the co-ordinate of the center of mass is = (\frac{4}{5},\frac{3}{5})

4 0
3 years ago
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