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svet-max [94.6K]
3 years ago
7

What is the common ratio for the sequence (-100, 20, -4....)

Mathematics
2 answers:
hammer [34]3 years ago
8 0

Answer:

divided by -5

Step-by-step explanation:

kakasveta [241]3 years ago
8 0

Answer:

divide by 5

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=%285x%20-%202%29%20%5Ctimes%20%28x%20%20%2B%202%29" id="TexFormula1" title="(5x - 2) \times (x
Mars2501 [29]

Answer:

5x^2 +8x-4

Step-by-step explanation:

(5x - 2) * (x  + 2)

We can FOIL

first: 5x*x = 5x^2

outer : 2*5x = 10x

inner: -2x

last : -2*2 = -4

Add these together

5x^2 +10x-2x-4

5x^2 +8x-4

4 0
3 years ago
What is the answer for -2/5(n + 3) = 10?
adell [148]

Answer: n=-28

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
State the value of the discriminant for the equation,<br> 3x^2 + 7x + 3 = 0
Irina-Kira [14]

Answer: 13

Step-by-step explanation:

If you remember the quadratic equation formula;

x=\frac{-b\frac{+}{}\sqrt{b^2-4ac}  }{2a}

You can easily extract what is under the root to find the discriminant.

b^2-4ac=?\\

a = 3

b = 7

c = 3

(7)^2-4(3)(3)\\49-36=13

7 0
3 years ago
4,139 divided by 14 equals what?
Anon25 [30]

Answer:

that would be 57,946

3 0
3 years ago
Read 2 more answers
Find the area and perimeter.
DanielleElmas [232]

Step-by-step explanation:

Perimeter = 12 + x + 6 + 2x + 5

Perimeter = 3x + 23.

Area = ½ × b × h

Area = ½ × 12 × (x + 6)

Area = 6(x + 6)

Area = 6x + 36

4 0
3 years ago
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