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Vesnalui [34]
3 years ago
6

For any real number b,b + (-b)

Mathematics
1 answer:
Verizon [17]3 years ago
4 0

Answer:

The answer is 0.

Step-by-step explanation:

Now, here we have to find the value of the expression:

b + (-b)

So here when we open up the brackets, we will get:

b + (-b)= b -b

So we can see that the term b is subtracted from itself and hence we get:

b -b=0

So the final value of the given expression:

b + (-b)= 0

and this is true for any real number b.

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EXTRA POINTS!
antiseptic1488 [7]

Answer:

y = 15

Step-by-step explanation:

angle poq + angle qor equals mpor (120)

4y + 3y + 15= 120

7y+15=120

subtract 15 from both sides

7y=150

divide both sides by 7

y=15

check:

4(15) + 3(15) + 15 equals 120

60 + 45 + 15 = 120

120 = 120

7 0
3 years ago
I'm confused how you split the fraction
slava [35]
1/3 + 1/3 + 1/3 + 1/3 + 1/3 + 1/3 = 6/3 
8 0
3 years ago
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15x^2 - 25 answer with a complete sentence
zubka84 [21]

Answer:

No, the following expression is not a difference of squares. Binomial can not be factored as the  difference of two perfect squares. 3 is not a square.

Step-by-step explanation:

Factor

15x^2 - 25

(15x)^2(-5)^5

Divide by 3 and factor

5(3x^2-5)

"Theory:

A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression."

I put a picture to help u understand.

7 0
3 years ago
Explain how to solve this problem.
Leya [2.2K]
The answer is A. <span>Work backward. 
Hong started talking with her friends at 10:10. 
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6 0
3 years ago
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PLEASE HELP:
wlad13 [49]
76/2=38 so half her mothers age is 38. And since Moira is 3 less than the half of her mothers age, Moira is: 38-3=35
4 0
4 years ago
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