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ivolga24 [154]
3 years ago
12

Are these expressions equivalent?(-2.6) + (-2.9) + (-7.1) and – (2.6+2.9+7.1) Why or why not?

Mathematics
2 answers:
Vilka [71]3 years ago
7 0

Answer:

Yes

Step-by-step expiation:

Negative plus negative equals a positive but you add the negative to a positive the number becomes a negative. and the other side everything is

positive in parentheses followed by a negative so they are equal.

Alika [10]3 years ago
7 0

yes, that is an examle o the distributive proeprty

i we take the 2nd phrase

-(2.6+2.9+7.1)=-1(2.6+2.9+7.1)=-1(2.6)-1(2.9)-1(7.1)=-(2.6)-(2.9)-(7.1)=(-2.6)+(-2.9)+(-7.1)


yes because of distributive property

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Can someone please help, my homework is so soon
statuscvo [17]

The line above the 6 and 3 means that those are recurring, so the full number is 2.63636363.... Recurring numbers can never be defined by decimals, because there is no end to the numbers repeating. It can only be defined by a fraction, so that means the number is irrational. Because it is between integers (a fraction that can't be simplified and will give a recurring decimal), it can't be a real number. All rational numbers are real numbers, but no irrational number can be a real number.

Therefore, your answer is 'Irrational number'.

Hope I helped!

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3 years ago
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Ahat [919]

11.5 x 2= 23 and 18 plus 5 = 23 so the answer would be 11.5

Hope this helps ;)

8 0
4 years ago
-3m &lt; 15<br> PLEASE HELP
lbvjy [14]

Answer:

m > -5

Step-by-step explanation:

Divide your inequality by the coefficient of m, which is -3. Doing that requires you reverse the comparison symbol:

(-3m)/(-3) > (15)/(-3)

m > -5

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The comparison symbol is reversed whenever an inequality is multiplie or divided by a negative number. You might be able to see why when you look at the relation between a couple of integers:

-2 < -1

2 > 1 . . . . . . multiply the above by -1

Multiplying by a negative number effectively reflects the comparison across the center of the number line. As we know from looking in a mirror; reflection reverses left and right, so numbers that were farther to the right (more positive) are now farther to the left (more negative).

6 0
3 years ago
Explain why 12 is a factor of 10 to the power of 12
Delvig [45]
It’s 120.......................
3 0
3 years ago
Show your work and hurry please
spayn [35]

Answer:

15

Step-by-step explanation:

Note: Take note , absolute value will give the magnitude of the value. (Which means ignoring the + / - signs.)

Eg. | - 19 | = 19

Therefore,

\frac{12(30 - (9 +  {4}^{2})) }{10 -  | - 6| }  \\  =  \frac{12(30 - (9 + 16))}{10 - 6}  \\  =   \frac{12(30 - 25)}{4}  \\  =  \frac{12(5)}{4}  \\  =  \frac{60}{4}  \\  = 15

4 0
2 years ago
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