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KATRIN_1 [288]
2 years ago
11

Please help I've been trying to figure it out but I can't​

Mathematics
1 answer:
Savatey [412]2 years ago
6 0

answer : 2 1/2

divide y by x

divide  2 1/2 by 1

its 2 1/2

10 divided by 4 is also

2 1/2

17 1/2 divided by 7 is also

2 1/2

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Find the measure of an angle that cuts 3/10 of a circle​
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A circle is 360 degrees.
So, 1/10 would be 36 degrees.
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108 degrees
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Rory walks a combined 7/8 of a mile to school and back each day. How many miles does he walk each way?
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3 years ago
Based on a​ survey, assume that ​31% of consumers are comfortable having drones deliver their purchases. Suppose that we want to
CaHeK987 [17]

Answer:

P(X = 2) = 0.3157

Step-by-step explanation:

Let assume that the question wants us to determine the probability that, let say when 5 customers are randomly selected, exactly 2 of the customers are comfortable.

Then;

p = 0.31

n = 5; x = 2

q = 1 - p

= 1 - 0.31

= 0.69

∴

The probability mass function is:

P(X =x) = ^n C_r * p^x *q^{n-x}

P(X =x) = ^5 C_2 * (0.31)^2 *0.69^{5-2}

P(X =2) = \dfrac{5!}{2!(5-2)!} * (0.31)^2 *0.69^{3}

P(X =2) = \dfrac{5!}{2!(3)!} * (0.31)^2 *0.69^{3}

P(X =2) = \dfrac{5*4*3!}{2!(3)!} * (0.31)^2 *0.69^{3}

P(X =2) = \dfrac{5*4}{2!} * (0.31)^2 *0.69^{3}

P(X =2) =10* (0.31)^2 *0.69^{3}

P(X = 2) = 0.3157

3 0
3 years ago
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