1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anika [276]
3 years ago
13

Additive inverse of 400

Mathematics
1 answer:
Goshia [24]3 years ago
7 0

Given:

A number is 400.

To find:

The additive inverse of 400.

Solution:

We know that the sum of a number and its additive inverse is 0.

If "a" is number and "b" is its additive inverse, then

a+b=0

Let x be the additive inverse of 400. Then,

400+x=0

Subtract both sides by 400.

400+x-400=0-400

x=-400

Therefore, the additive inverse of 400 is -400.

You might be interested in
How to create a conditional frequency table
Trava [24]
Here is how to create a <span>conditional frequency table:

"1. It has to be a chart
2. Has to have two variables
3. Has to include the results of the variables"

Picture below:

Hope this helps!  
</span>

6 0
3 years ago
Calculate the area of each circle
Marysya12 [62]

Answer:

2.01  \: {inches}^{2}

Step-by-step explanation:

The formula to find the area of a circle is

area \: of \: circle \:  = \pi {r}^{2}

Let pi be (3.14), the radios as given in the question is (1.6 ÷ 2 = 0.8). Therefore;

\pi {r}^{2}  =  \\ (3.14) \: {(0.8)}^{2}  \\ 3.14 \times 0.64 =  \\ 2.0096\: or \: 2.01{inches}^{2}

8 0
2 years ago
The cost of a week long vacation in a city has a mean of 1000 and a variance of 1200. The city imposes a tax which will raise al
matrenka [14]

Answer:

The coefficient of variation after the tax is imposed is 0.033

Step-by-step explanation:

Given

\mu =1000 --- mean

\sigma^2 = 1200 --- variance

tax = 10\%

Required

The coefficient of variation

The coefficient of variation is calculated using:

CV = \frac{\sqrt{\sigma^2}}{\mu}

After the tax, the new mean is:

\mu_{new} = \mu * (1 + tax)

\mu_{new} = 1000 * (1 + 10\%)

\mu_{new} = 1100

And the new variance is:

\sigma^2_{new} = \sigma^2 * (1 + tax)

\sigma^2_{new} = 1200 * (1 + 10\%)

\sigma^2_{new} = 1320

So, we have:

CV = \frac{\sqrt{\sigma^2}}{\mu}

CV = \frac{\sqrt{1320}}{1100}

CV = \frac{36.33}{1100}

CV = 0.033

6 0
3 years ago
The length of a rectangular window is 5 feet more than its width, w. The area of the
Ilya [14]

Answer:

The equation could be used to find the dimensions of the  window would be:  w^{2}  + 5w = 36

Step-by-step explanation:

as

  • The length of a rectangular window is 5 feet more than its width, w.

and

  • The area of the  window is 36 square feet.

So it means

l = w + 5

A = lw

36 = (w + 5)w

w^{2}  + 5w = 36

Therefore, the equation could be used to find the dimensions of the  window would be:  w^{2}  + 5w = 36

8 0
3 years ago
Please help me please!!!!!!!
Alex787 [66]
The answer is B) 60 

Hopes this helps ya!
6 0
3 years ago
Other questions:
  • I need the equation of the line in the picture
    11·2 answers
  • The area of a circle is 16π m2. What is the radius of the circle?
    15·2 answers
  • How do you simplify an expression that contains a fraction bar?
    11·1 answer
  • What is -5 1/3 - 2 1/3 ?
    6·1 answer
  • Which of the following themes is culturally specific? the danger of fighting against a powerful enemy the fear of being lost the
    7·2 answers
  • 2³/2²<br> help pls lol um
    11·1 answer
  • A pickup truck travels 45 Mi on 2 and 1/3 gallons and goes19 miles on one gallon of gas. At that rate how far will it travel on
    13·1 answer
  • 1
    7·1 answer
  • 120
    8·1 answer
  • Do please help (THESE ARE EXTRA WORDS BECAUSE BRAINLY WANTS SOME)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!