All categories

3 years ago

May somebody help me please.

Mathematics

1 answer:

MakcuM [25]3 years ago

8 0

The answer is four!!

You might be interested in

14 + 2y - 3+ 7x - 12y +3x - 20=

Trava [24]

Answer:

The answer is 10x - 10y - 9

Step-by-step explanation:

14 - 3 - 20 = -9

2y - 12y = -10y

7x + 3x = 10x

14 + 2y - 3 + 7x - 12y + 3x - 20 = 10x - 10y - 9

4 0

3 years ago

The outside temperature at midnight us -7° C . By 11 am the temperature has risen by 12°C what is the temperature at 11 am

Yanka [14]

Answer:

5°C

Step-by-step explanation:

We need to add 12 onto the -7:

-7 + 12 = 5

3 0

3 years ago

The ages of the employees at Solar Systems, Inc. is normally distributed with a mean of 32.7 years and a standard deviation of 1

svetoff [14.1K]

Answer:

6.7% of employees at Solar Systems, Inc. are younger than 30 years old

Step-by-step explanation:

The mean of ages of the employees at Solar Systems is 32.7 years

Mean = $\mu = 32.7$

Standard deviation = $\sigma = 1.8 years$

We are supposed to find What percentage of employees at Solar Systems, Inc. are younger than 30 years old i.e.P(x<30)

So, $Z=\frac{x-\mu}{\sigma}$

$Z=\frac{30-32.7}{1.8}$

Z=-1.5

Refer the z table for p value

So,p value = 0.0668

So P(x<30)=0.0668= 6.68% = 6.7%

So, 6.7% of employees at Solar Systems, Inc. are younger than 30 years old

7 0

3 years ago

What is a box plot in maths?

Zolol [24]

Answer:

A box and whisker plot—also called a box plot—displays the five-number summary of a set of data. The five-number summary is the minimum, first quartile, median, third quartile, and maximum. In a box plot, we draw a box from the first quartile to the third quartile. A vertical line goes through the box at the median

Step-by-step explanation:

3 0

3 years ago

Can you help me please I’ll give brainliest

kolezko [41]

The answer is B I hope it’s right

5 0

3 years ago