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chubhunter [2.5K]
2 years ago
10

Someone please help I don't know how I got #7 or how to solve it.

Mathematics
1 answer:
Paha777 [63]2 years ago
8 0
It's definitely not 90° bit i think it would be <SRQ
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Which expression is equivalent to 16 - 4x^2?
melamori03 [73]

Answer:

4(2 - x)(2 + x)

Step-by-step explanation:

16 - 4x² ← factor out 4 from each term

= 4(4 - x²) ← difference of 2 squares

= 4(2 - x)(2 + x) ← in factored form

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2 years ago
The rectangular model is made up of squares. Each square is of equal size.
IrinaK [193]
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Find the equation of a line that contains the points (−3,−1) and (−4,−7). Write the equation in slope-intercept form
ikadub [295]

Answer:

  y = -8x -25

Step-by-step explanation:

The 2-point form of the equation of a line is useful when you are given 2 points.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (7 -(-1))/(-4 -(-3))(x -(-3)) +(-1)

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7 0
3 years ago
What is the area of the octagon? rectangular shaped
V125BC [204]

Answer:

A=2(1+2)a2=2·(1+2)·22≈19.31371

Step-by-step explanation:

hope this helps!

5 0
2 years ago
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F(3)=2*3-8=-2. 
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2 years ago
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