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Stolb23 [73]
3 years ago
15

PLS PLS HELP

Mathematics
1 answer:
Tcecarenko [31]3 years ago
4 0

Answer:

  • 7 cm

Step-by-step explanation:

<u>Volume of the prism is the product of its base area and height</u>

  • V = AH
  • V = 1260 cm³
  • H = 18 cm

<u>Find base area:</u>

  • A = 1260/18 = 70 cm²

<u>Area of the trapezoid:</u>

  • A = 1/2(b₁ + b₂)h

<u>Substitute given values and solve for h:</u>

  • 70 = 1/2(12 + 8)h
  • 70 = 10h
  • h = 70/10
  • h = 7 cm
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Answer:  g(x) = \frac{1}{x-6} - 4

This can be written out as g(x) = 1/(x-6) - 4

The "x-6" is in the denominator, while the "-4" is not.

=============================================================

Explanation:

We'll start with the parent function f(x) = \frac{1}{x}

When we shift 4 units down, we're subtracting 4 from the y coordinate of each point on the curve. Which is the same as subtracting 4 from f(x) because y = f(x).

So we have h(x) = f(x) - 4 = \frac{1}{x} - 4 as an intermediate step.

Then to shift 6 units to the right, we'll replace every x with "x-6". Imagine we kept the h(x) curve completely still, and instead we moved the xy axis 6 units to the left. This would give the illusion of h(x) moving 6 units to the right if we made the xy axis stay still. So that's why we go for "x-6" instead of "x+6".

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Side note: plugging in x = 6 leads to a division by zero error. This would mean x = 6 is not in the domain.

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