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DiKsa [7]
3 years ago
15

Which of the following algebraic expressions is not simplified?

Mathematics
1 answer:
AlladinOne [14]3 years ago
6 0

Answer:

Option D. a^2+6ab-2ba

Step-by-step explanation:

Option D because we have like terms: 6ab and -2ba=-2ab, then

a^2+6ab-2ba=a^2+6ab-2ab

Simplifying on the right side of the equation adding like terms:

a^2+6ab-2ba=a^2+4ab

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PLEASE HELP ME PLEASE
sladkih [1.3K]

Answer:

10.5625

Step-by-step explanation:

I just multiplied the 2 fractions and that is what i got.

7 0
2 years ago
Please answer the following chooses correctly.Each choose is true or false.
Mama L [17]

Answer:

1) True

2) False

3) False

4) True

Step-by-step explanation:

1) True

Anything over 100% is larger than the original.

2) False

Since it is 225% bigger, you multiply 4 by 2.25.

4 x 2.25 = 9

3) False

If it is 225% larger, it means that it is 2.25 times larger

4) True

8 0
3 years ago
the original cost of a piano is 19,100 and it is on a sale for 19% off its original price if the total l cost includes a 5% sale
amid [387]

Answer:

16,244.55

Step-by-step explanation:

Original cost of piano = 19,100

19% off on 19,100 = 0.19*19100 = 3,629

Selling cost = 19100 - 3629 = 15471

Sales tax = 5% =0.05

Amount of sales tax = 0.05*15471 = 773.55

Total selling cost of piano = Selling cost + Amount of sales tax = 15471 + 773.55 = 16,244.55

4 0
3 years ago
Read 2 more answers
Like terms 4x + 2x + 7x
nasty-shy [4]
Since the 3 of them are like terms, we have to ADD all 3 of them.

4x+2x+7x= 13x
4 0
2 years ago
Read 2 more answers
Alexandra and Stephanie are sisters, and they're saving their money to buy a used car. Together they have more than $2,500, and
Vilka [71]

Answer:

Stephanie has more than $900

Step-by-step explanation:

Represent the unknowns:  a for Alexandra and s for Stephanie.

Then a + s > $2,500, and a = s + $700.

Substituting the latter into the former equation, we get:

(s + $700) + s > $2,500, or

2s > $1800

Then s > $900; Stephanie has more than $900.

7 0
2 years ago
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