in class, matthew stated "i think that a negative is like an opposite. That is why multiplying a negative times a negative equals a positive. The opposite of negative is positive, so it is just like multiplying the opposite of a negative twice, which is two positives." Do you agree or disagree with this statement? What would you say in response to him?

Answers

Answer 1
Answer:

Answer: Yes, I agree with this statement.

Step-by-step explanation:

Yes, I agree with this statement.

Whenever we multiply two negative numbers, we get a positive number.

As two negatives makes a positive.

Negative is just like an opposite.

Opposite of 4 is -4.

and negative of 4 is also -4.

The opposite of negative is positive.

i.e. opposite of -4 is 4.

So, Negative is always treat as opposite.

Answer 2
Answer: Yes and no. A negative number and it's opposite are 'integers.' Yes, a negative and a negative multiplied together give you a positive. The two negative signs cancel out making it positive. But no, a positive and a positive multiplied together do not give you a negative. When you subtract positive numbers you can get a negative, but not when multiplying. If you were to do a positive times a negative it would be negative because the positive can't cancel it out. Example: -3 · -3 = 9. [] 3 · 3 = 9. [] -3 · 3 = -9. Other than the positive number part, the statement is true about the negatives. I hope that helped!

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Alguém sabe como faz essas duas questões ?

Answers

Minha resposta: não.

Tyler makes $10 per hour at his job.The function f(x)=10x gives the amount of money Tyler makes after x hours.Graph this function and give its domain and range.

Answers

You will have the points: (0,0) and (1,10) and (2,20) and (3,30) etc etc

Plot at least 2 of these points. Then draw a line through them.

Each point has an x,y pair such that the y value is ten times the x value

For example, if x = 2, then

y = 10*x = 10*2 = 20

so that shows how (2,20) is one of the points.

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The domain would be the set of positive whole numbers assuming Tyler can only work a whole number of hours. If partial time values are accepted, then the domain would be the set of positive real numbers. Negative x values are not allowed as Tyler can't work negative 3 hours for instance.

In a similar fashion, the range is the set {0, 10, 20, 30, 40, ...} incrementing by multiples of 10 if x is the set of positive whole numbers. If x is the set of positive real numbers, then y can be 0 or larger which sets up the range of y being the set of positive real numbers as well.

Cards with the numbers 1 through 40 are placed in a box and thoroughly shuffled. What is the probability of randomly selecting a card with a number less than 10 or a multiple of 15?







A.








B.








C.








D.

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9/40 + 2/40 = 11/40

hope this helps

Round to the given place value hundreds and tens 547 , 609 and 990

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the first number will be 500
the second number will be 600
and the last number will be 990

1. 500, 550
2. 600, 610
3. 1000, 910

I'm not sure how to calculate 12.5% of £168 anyone that can help if so that'd be great!

Answers

percent means parts out of 100

12.5%=12.5/100=0.125

'of' means multiply

12.5% of 168 means
0.125 times 168=21


answer is 21

Help! please i’m stuck

Answers

ABC is an isosceles triangle.
AB = BC = 8
Therefore Angle B = 30 degrees
So, Angle A = 180 -30 -30
Angle A = equals 120 degrees
answer is B



The answer is B, 120.