All categories

3 years ago

What do you get when you evaluate (-1) 50?

Mathematics

2 answers:

RoseWind [281]3 years ago

3 0

Answer:--50

Step-by-step explanation:

Ivanshal [37]3 years ago

3 0

Answer: -50

This equation is asking you to multiply 50 by -1. When a number is in parentheses alone next to another number, the equation is usually asking for multiplication.

When a number is multiplied one, the value of the number remains the same. Since this is -1, however, the value will become -50.

This is your answer! Hope this helps comment below for more questions :)

You might be interested in

You have prizes to reveal! Go to Does (7,9) make the inequality 15x + 17y > 13 true?

Hoochie [10]

Answer:

yes it is cause the answers 258

3 0

3 years ago

Read 2 more answers

In a class3 students are boys. If there

Flauer [41]

Answer:

Most probably there should be 20 Boys.

8 0

3 years ago

Need help please!! Will give points

Nataly [62]

Answer:

1. $\bar X=5.10$

2. $\sigma=0.47$

3. $\sigma^2=0.22$

Step-by-step explanation:

QUESTION 1

The given data set for the expenditure is

$4.85,5.10,5.50,4.75,4.50,5.00,6.00$

The formula for calculating the mean is given by,

$\bar X=\frac{\sum x}{n}$

We need to add all the expenditure and divide by the total number of days.

$\bar X=\frac{4.85+5.10+5.50+4.75+4.50+5.00+6.00}{7}$

This gives us,

$\bar X=\frac{35.7}{7}$

$\Rightarrow \bar X=5.10$ to the nearest hundredth.

QUESTION 2

The standard deviation of the data set is given by the formula;

$\sigma =\sqrt{\frac{\sum(x-\bar X)^2}{n} }$

This implies that,

$\sigma =\sqrt{\frac{(4.85-5.10)^2+(5.10-5.10)^2+(5.50-5.10)^2+(4.75-5.10)^2+(4.50-5.10)^2+(5.00-5.10)^2+(6.00-5.10)^2}{7} }$

This will give us,

$\sigma =\sqrt{\frac{(-0.25)^2+(0.00)^2+(0.40)^2+(-0.35)^2+(-0.60)^2+(-0.10)^2+(0.90)^2}{7} }$

$\sigma =\sqrt{\frac{0.0625+0+0.16+0.1225+0.36+0.01+0.81}{7} }$

$\sigma =\sqrt{\frac{61}{280} }$

$\sigma =0.466775$

to the nearest hundredth,

$\sigma =0.47$ .

QUESTION 3

The variance is the square of the standard deviation.

$\sigma^2 =(0.46675)^2$

$\sigma^2 =0.217857$

To the nearest hundred gives,

$\sigma^2 =0.22$

3 0

3 years ago

Name at least two independent variables that could result in a change in a monthly electric bill.

Olin [163]

Answer:

The non-production machinery that uses electricity, the physical size of the items, the skill level of the operators, and the outdoor temperature and humidity could all be independent variables in the monthly electricity cost. Step-by-step explanation.

4 0

3 years ago

Two students are asked to come to the board to work a math problem. Each student could work an easy question (E) or a hard quest

Allisa [31]

Top Left: EE
Top Right: EH
Bottem Left: HH
Bottem Right: HE

4 0

3 years ago