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BaLLatris [955]
4 years ago
10

Need help!! Don't understand algebra. I need help figuring out 18x2 + 9x - 20

Mathematics
1 answer:
Murrr4er [49]4 years ago
8 0
The answer is (6x-5)(3x+4)

Write 9x as a sum or difference.
18x^2+24x-15x-20
Factor out 6x from the expression.
18x^2+24x
Factor out -5 from the expression.
-15x-20
Factor out 3x+4 from the expression. 
6x(3x+4)-5(3x+4). 

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0.2.0.4, 0.6, 0.8, 1....<br> Arithmetic or geometric
Basile [38]

Arithmetic sequences have a common difference between consecutive terms.

Geometric sequences have a common ratio between consecutive terms.

Let's compute the differences and ratios between consecutive terms:

Differences:

0.4-0.2 = 0.2,\quad 0.6-0.4=0.2,\quad 0.8-0.6=0.2,\quad 1-0.8=0.2

Ratios:

\dfrac{0.4}{0.2}=2,\quad \dfrac{0.6}{0.4} = 1.5,\quad \dfrac{0.8}{0.6} = 1.33\ldots, \quad\dfrac{1}{0.8}=1.25

So, as you can see, the differences between consecutive terms are constant, whereas ratios vary.

So, this is an arithmetic sequence.

3 0
3 years ago
Determine the distance between point (x1, y1) and point (x2, y2), and assign the result to point distance. the calculation is: d
Ronch [10]

we are given two points as

(1.0, 2.0) and (1.0, 5.0)

so,

(x1, y1)= (1.0 , 2.0)

(x2, y2)= (1.0 , 5.0)

x1=1 , y1=2

x2=1 , y2=5

now, we can use distance formula

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

now, we can plug values

and we get

d=\sqrt{(1-1)^2+(5-2)^2}

d=\sqrt{(0)^2+(3)^2}

d=\sqrt{(3)^2}

d=3

so, distance between points is 3...........Answer

5 0
3 years ago
HELLLLPPPPPPPPPPPPPPPPPPPPPPPPPPP
Natali5045456 [20]

Answer:

3/1

Step-by-step explanation:

5 0
3 years ago
Someone please help me with this math problem, and please show the work
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3 0
3 years ago
Reflect order pair (-2, 5) over y=-x
vesna_86 [32]

When reflecting over y = -x

The x and y values change places and the signs change.

(-2,5) becomes (-5,2)

8 0
4 years ago
Read 2 more answers
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