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seropon [69]
3 years ago
11

As shown, several colored paper squares are placed in a bowl. One paper square is randomly selected. Is this a uniform or non-un

iform probability model? Justify your reasoning. A) It is a uniform probability model because each color has an equal chance of being selected. B) It is a non-uniform probability model because each color has an equal chance of being selected. C) It is a uniform probability model because each color does not have an equal chance of being selected. D) It is a non-uniform probability model because each color does not have an equal chance of being selected.
Mathematics
1 answer:
Lemur [1.5K]3 years ago
5 0

Answer:

B it is a non-uniform probability model because each color has an equal chance of being selected

Step-by-step explanation:

Developing a uniform probability model by assigning equal probability to all. If we select one student at random from the ten, is that a uniform then student name or grade level or color of their shirt or shoe size or different that the probability model uniform is different so that means the model is a non-uniform

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I NEED HELP AHHHHH!!!!!!!!!!!
slega [8]

Answer: I think it's 4.5

Step-by-step explanation: 27÷6=4.5

6 0
3 years ago
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Mrs. Aries hired Jack a math tutor to help her son. Because of budget she can pay him no more than $420 a month. If Jack charges
klasskru [66]

Answer:

12 hours a month

Step-by-step explanation:

No.of hours the teacher can tutor a month = 420/ 35

= 60/5    {giving by 7th table}

= 12 hours

4 0
3 years ago
A water tank is in the shape of a right circular cone as shown above. The diameter of the cone is 10 feet, and the height is 15
Vsevolod [243]

Answer:

The rate at which the height of the water tank is changing is approximately 0.4244 ft/hour

Step-by-step explanation:

The given parameters are;

The diameter of the cone = 10 feet

The height of the cone = 15 feet

The rate at which water is leaking from the tank, (dV/dt) = 12 ft³/h

The volume of water in the tank = 27·π cubic feet

The volume V of a right circular cone with radius r and height h = 1/3×π×r²×h

The rate of change of the volume, dV, with time dt is given as follows;

The radius of the cone when the volume of the water in the tank is 27·π cubic feet is given as follows;

1/3×π×r²×h = 27·π ft³

The ratio of the height to the radius of the cone is h/r = 15/5 = 3

h/r = 3

∴ r =h/3

The volume of the cone, V = 1/3×π×r²×h = 1/3×π×(h/3)²×h = 1/27×π×h³ =  h³/27×π

dV/dt = dV/dh × dh/dt

Which gives;

12 = d(h³/27×π)/dh × dh/dt = π×h²/9 × dh/dt

dh/dt = 12/(π×h²/9)

At 27·π ft³ = 1/27×π×h³ ft³, we have;

27 = 1/27×h³

27² = h³

h = ∛27² = 9

∴ dh/dt = 12/(π×h²/9) = 12/(π×9²/9) = 12/(π×9) = 4/(3·π) ≈ 0.4244 ft/hour

The rate at which the height of the water tank is changing ≈ 0.4244 ft/hour.

6 0
3 years ago
A ball is thrown upward with an initial velocity of 16 ft/sec from a height of 32 ft above the ground. The height, in feet, of t
GaryK [48]

Answer:  2 seconds.

Step-by-step explanation:

Given : A ball is thrown upward with an initial velocity of 16 ft/sec from a height of 32 ft above the ground.

The height, in feet, of the ball t sec after it is thrown can be represented by

s=-16t^2+16t+32.

When ball reaches the ground , s= 0.

\Rightarrow -16t^2+16t+32=0

Divide both sides by 16 , we get

-t^2+t+2=0\\\\\Rightarrow\ t^2-t-2=0\\\\\Rightarrow\ t^2-2t+t-2=0\\\\\Rightarrow\ (t-2)(t+1)=0 \\\\\Rightarrow\ t=2,-1

But time cannot be negative , so t= 2.

Hence , it will take 2 seconds for the ball to reach the ground.

8 0
3 years ago
What is the answer?<br> Please and thanks
Paha777 [63]

59 is prime number so there's only 1 factor pair  of 59

1 and 59

Answer

1 and 59

7 0
3 years ago
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