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2 years ago

What transformation is described by the notation (x, y) to (x, -y)?

Mathematics

1 answer:

ivanzaharov [21]2 years ago

5 0

Answer:

is rotation one of them

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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.

7 0

2 years ago

A fish with 68 meters at a constant speed in 8 minutes. On her homework assignment, Tracy said the fish traveled 60 meters per m

Natasha2012 [34]

Morgan is right because to find how much something is per minute you need to divide. In this case, you need to divide 68 and 8. The answer then is 8.5

3 0

2 years ago

What ratio is equivilent to the ratio 3:4

Assoli18 [71]

Answer:

6:8 x2

9:12 x3

12:16 x4

15:20 x5

Step-by-step explanation:

Just multiply both of the number by the same number and you will find an equavilant ratio.

Hope this helps!

*I also added a few different answers so it can give you a clear idea.

4 0

2 years ago

PLEASE ANSWER THIS QUESTION !! WILL GIVE BRAINLIEST !! 20 POINTS !!

Reil [10]

Answer:

(2x+1)(x+7)

Step-by-step explanation:

Guess and Check

(2x+7)(x+1) = 2x^2+9x+7. NOPE

(2x+1)(x+7) = 2x^2+15x+7. YES

8 0

2 years ago

Read 2 more answers

What is the estimate of 5.26 ➕ 9.75?

Lelechka [254]

5.26 + 9.75
= 15.01
= 15

7 0

3 years ago