All categories

3 years ago

At 9 a.m. a car (A) began a journey from a point, traveling at 40 mph. At 10 a.m.

1 answer:

5 0

At three hours as car a has already traveled a hour which making it three therefore making car b equal 2 hours or in a math equation 40×3=car b and 60×2=car a

You might be interested in

8x8-5x20 12 45 64 -36 -15 -10

Orlov [11]

-36 because 64-100 (separate the terms)

6 0

2 years ago

Read 2 more answers

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

I'll mark you brainlist and give you 5 star I just need a lot of help

Softa [21]

ANSWER: M(-9,-4) to M’(-5,2)
If (x,y) is to (x+4,y+6)
Then (-9,-4) is to (-9+4,-4+6)
Hence (-9,-4) is to M’(-5,2)
Hopefully it’s correct

4 0

2 years ago

Read 2 more answers

For spring cleanups, a landscaper charges a flat fee of $60 plus $20 for each hour of labor. Which equation models the cost in d

o-na [289]

Answer:

Step-by-step explanation:

I hope this will help. I was really calculating maybe keep on trying on A peice of paper.:)

6 0

2 years ago

Find the value of x. Then find the measure of each label length.

sweet-ann [11.9K]

Should be somewhere around there either way for 9. the angles are the same because you see the arrows on the parallel lines 8. I'm not quite as sure about

3 0

3 years ago