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2 years ago

The graph of a proportional relationship contains the point (20, 4) .

Mathematics

2 answers:

pshichka [43]2 years ago

7 0

Answer:

i think its 5/1

Step-by-step explanation:

Novosadov [1.4K]2 years ago

5 0

Step-by-step explanation:

in a proportional relationship, one variable is always a constant value times the other.

and as such, (0, 0) is always a point of that relationship too.

in general that means the equation is

y = ax

with a being the constant.

using the given point :

4 = a×20

a = 4/20 = 1/5

so, the equation is y = x/5

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2 years ago

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The average score of all pro golfers for a particular course has a mean of 70 and a standard deviation of 3.0 (Think of these as

bija089 [108]

Answer:

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 70

Standard Deviation, σ = 3

Sample size, n = 36

Let the average score of all pro golfers follow a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(score of the 36 golfers was between 70 and 71)

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$P(70 \leq x \leq 71) = 47.7\%$

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

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2 years ago

a car model comes with the following choices: 9 colors,with or without air conditioning,with or without sunroof ,with or without

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