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elena-s [515]
3 years ago
14

Simplify (a+b)(a^2-ab+b^2)

Mathematics
1 answer:
Pani-rosa [81]3 years ago
6 0

Answer: a^3 - b^3

Step-by-step explanation:

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Factor the following, I will give 5 stars and thanks.
tigry1 [53]

Answer:

13) n=-3,-7

14) b=-4,-8

15) m=-7

16) a=-5,-7

Step-by-step explanation:

5 0
2 years ago
Write a formula that will yield the nth term of the sequence: 3,-2,-7,-12
RUDIKE [14]

Answer:

-5n + 8

Step-by-step explanation:

<u>1. What is the difference?</u>

  The sequence goes down by 5. This means that the formula will have -5n in it.

<u>2. Work out the term before the first term.</u>

    The first term is 3, and we know that the sequence goes up by 5. So, to get the term before 3 we would add 5.

3 + 5 = 8   Remember, this is positive 8. (+8)

<u>3. Put that term at the end of the equation. </u>

   We have -5n already and we just worked out the term before the first one which is positive 8 - so put that at the end of the equation.

-5n + 8  This is our answer!

Just to prove it works:

<em>Substitute:   n = term</em>

Lets see if we can get the 3rd term which is -7. (n = 3)

-5(3) + 8

-15 + 8 = -7

See, it works!

8 0
3 years ago
Anyone know the answer , please help!
romanna [79]

Answer:

7

Step-by-step explanation:

Data of # posts made:

1, 1, 2, 2, 3, 5, 5, 6, 7, 7, 7, 8, 8, 9, 9, 9, 9, 10

Since we want to find the median, we find the middle number which is 7. The median is 7.

6 0
3 years ago
Find the area. please
sashaice [31]

Answer:

16 cm²  

Step-by-step explanation:

The figure is a trapezoid with two parallel sides.

The formula for the area is

A = ½(a + b)h

Data:

a = 5 cm

b = 3 cm

h = 4 cm

Calculation:

A = ½(5 + 3) × 4 = ½ × 8 × 4 = 16 cm²

The area of the trapezoid is 16 cm².

8 0
3 years ago
Drag each set of coordinates to the correct location on the table. Not all sets of coordinates will be used.
navik [9.2K]

Answer:

(-4,-7)

(4,7)

(-4,-5)

(1,-1)

Step-by-step explanation:

Plato answer.

8 0
3 years ago
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