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damaskus [11]
3 years ago
11

Which statements about opposites are true? Select each correct answer.

Mathematics
1 answer:
____ [38]3 years ago
7 0

Answer:

(a) TRUE

(b) TRUE

(c)  FALSE

(d) TRUE

Step-by-step explanation:

" The "opposite" of any number is also known as it's " additive inverse" i.e. for any number 'a' the additive inverse is 'a' ".

(a) TRUE

Since let us consider any negative number '-5' then it's opposite is '5' since (-5)+5=0

(b) TRUE

this could be seen clearly from the number line.

(c) FALSE

this statement is false since we can take example of zero.

the opposite of zero is 0 but 0×0≠1.

(d) TRUE

since 0-0=0.Step-by-step explanation:

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Given the graph below, which of the following best explains the range of the equation?
Travka [436]

Answer:

y 0, because the function comes close to zero but never touches it and goes infinitely in the positive direction.

6 0
3 years ago
Mark uses 19 gallons of gas while traveling 399
Ket [755]

Answer:

189

Step-by-step explanation:

If mark uses 19 gallons to travel 399 miles, that means he was able to travel 21 miles per gallon.

We get this by taking 399 divided by 19.

So if mark travels on 9 gallons of gas and goes 21 miles per gallon, he will have traveled 189 miles.

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3 years ago
What is the result of subtracting the second equation from the first?<br> -2x+y=0<br> 7x+3y=2
ikadub [295]

Answer:

5x -2y = -2

Step-by-step explanation:

-2x+y=0

-7x+3y=2

Subtract the second equation from the first

-2x+y=0

7x-3y=-2

------------------

5x -2y = -2

4 0
3 years ago
Unit sales for new product ABC have varied in the first seven months of this year as follows: Month Jan Feb Mar Apr May Jun Jul
Alecsey [184]

Answer:

\sigma = 121.53

Step-by-step explanation:

Required

The population standard deviation

First, calculate the population mean

\mu = \frac{\sum x}{n}

This gives:

\mu = \frac{148+ 329+ 491 +167+ 228+285+ 441}{7}

\mu = \frac{2089}{7}

\mu = 298.43

The population standard deviation is:

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

So, we have:

\sigma = \sqrt{\frac{(148 - 298.43)^2 + ..........+ (441- 298.43)^2}{7}}

\sigma = \sqrt{\frac{103387.7143}{7}}

\sigma = \sqrt{14769.6734714}

\sigma = 121.53

8 0
3 years ago
This bc it’s really really really hard and I can’t figure it out
Ket [755]

Answer:

-4/5

Step-by-step explanation:

3/5+(-7/5)

-4/5

5 0
2 years ago
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