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SpyIntel [72]
3 years ago
11

Describe how to model negative 3x + 7 equals 28 with algebra tiles

Mathematics
1 answer:
lana66690 [7]3 years ago
8 0
You will put three x tiles and seven positive tiles
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Solve by factorisation 2x^2+3x-20
olga2289 [7]

Answer:

(x + 4) × (2x - 5)

Step-by-step explanation:

  • Begin by writing 3x as a difference
  • 2x^2 + 8x - 5x - 20

  • Factor out 2x from the expression
  • 2x × (x + 4) - 5x - 20

  • Factor out -5 from the expression
  • 2x × (x + 4) - 5 (x + 4)

  • Factor out x + 4 from the expression
  • (x + 4) × (2x - 5)

Hope this helps!!

7 0
3 years ago
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URGENT. CAN SOMEONE PLEASE HELP ME WITH GEOMETRY? CHECK MY PAGE FOR EZ POINTS!!! :DDD
Naya [18.7K]

Answer:

bhet

Step-by-step explanation:

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6 0
2 years ago
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The following data points represents how many tunnels Gary the groundhog dug each year. 18,5,13,9,6,2,10 using the data to creat
aleksandr82 [10.1K]

Answer:

The histogram for the data is attached below.

Step-by-step explanation:

The methods commonly used for depicting a frequency distribution are:

  • Histogram/Column graph
  • Bar graph
  • Frequency Polygon
  • Pie chart

Out of these, one of the most general and extensively used devices of illustrating a frequency distribution is the histogram.

The data provided for the number of tunnels Gary the groundhog dug each year is:

S = {18, 5, 13, 9, 6, 2, 10}

The histogram for the data is attached below.

5 0
3 years ago
Stable electron configurations are likely to contain ____.
klio [65]

A- Stable electron configurations are likely to contain - filled energy sub-levels.

B- How many unpaired electrons are in a sulfur atom (atomic number 16)? Answer is 2

3 0
3 years ago
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The points (-1,2) and (4,y) have a slope of -4/5. what is the y-coordinate of the point (4,y)
Nastasia [14]

Answer:

y = - 2

Step-by-step explanation:

Calculate the slope m using the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 1,2) and (x₂, y₂ ) = (4, y)

m = \frac{y-2}{4+1}, hence

\frac{y-2}{5} = - \frac{4}{5} ( cross- multiply )

5(y - 2) = - 20 ( divide both sides by 5 )

y - 2 = - 4 ( add 2 to both sides )

y = - 2

coordinates of point are (4, - 2)

7 0
3 years ago
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