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leva [86]
2 years ago
5

What is the area of the polygon

Mathematics
1 answer:
Leona [35]2 years ago
6 0

Answer:

42m2

Step-by-step explanation:

9x4=36m2

3x2x0.5=3m2x2=6m2

36+6=42m2

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the first one

Step-by-step explanation:

6 0
3 years ago
What is the x-intercepts of the graph of y = 12x-5x-2
devlian [24]
Hey there!

First, we see that it's already written in slope intercept, y = mx + b where m is the slope and b is the y intercept, we just need to simplify the like terms on the right. We have:

y = 12x-5x-2
y = 7x - 2

Now that we have it in slope intercept form, whenever we have an x intercept, since it is crossing the x axis, there's no y value. We plug in 0 for y:

0 = 7x - 2
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The x intercept is (2/7, 0)

Hope this helps!
6 0
3 years ago
I dont understand???????????
love history [14]

Answer:

Step-by-step explanation:

We can obtain that the dimensions of the rectangle are 7 by 5.

Since A = lw, the total area is 35.

5 0
2 years ago
Can someone pls help, I know this is kind of a lot but I’ve been stuck on this for a while now.
Greeley [361]

9514 1404 393

Answer:

  (a, b, c) = (-0.425595, 11.7321, 2.16667)

  f(x) = -0.425595x² +11.7321x +2.16667

  f(1) ≈ 13.5

Step-by-step explanation:

A suitable tool makes short work of this. Most spreadsheets and graphing calculators will do quadratic regression. All you have to do is enter the data and make use of the appropriate built-in functions.

Desmos will do least-squares fitting of almost any function you want to use as a model. It tells you ...

  a = -0.425595

  b = 11.7321

  c = 2.16667

so

  f(x) = -0.425595x² +11.7321x +2.16667

and f(1) ≈ 13.5

_____

<em>Additional comment</em>

Note that a quadratic function doesn't model the data very well if you're trying to extrapolate to times outside the original domain.

3 0
3 years ago
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