2 years ago

Gffffffffffffffffffffffffffffffffffffffffffffffffffffff,,,,

Mathematics

1 answer:

torisob [31]2 years ago

3 0

Wdym by this LOL I don’t get it

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Identify a number that results in a 4-digit-number when 156,350 is subtracted from it

jekas [21]

160,000 - 156,350 =3,650

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2 years ago

The temperature of coffee served at a restaurant is normally distributed with an average temperature of 160 degrees Fahrenheit a

posledela

Answer:

The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 160 degrees

Standard Deviation, σ = 5.4 degrees

We are given that the distribution of temperature of coffee is a bell shaped distribution that is a normal distribution.

Formula:

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

We have to find the value of x such that the probability is 0.2

$P( X < x) = P( z < \displaystyle\frac{x - 160}{5.4})=0.2$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 160}{5.4} = -0.842\\\\x = 155.4532$

Thus,

$P_{20}=155.4532$

The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.

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leonid [27]

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Simplify the algebraic expression 15 x y - 13 + 4 x + 3 y + x y + 21

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(16xy + xy) + (4x) + (3y) + (-13 + 21)

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Step-by-step explanation:

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