If rain film 20 mm/m how much did it fall into in millimeters per hour

1 answer:

5 0

1 min = $\frac{1}{60} \: hour$

Now,

Replacing m with $\frac{1}{60} h$

$\frac{20mm}{m} \\ \frac{20mm}{ \frac{1}{60}h } \\ \frac{20mm \times 60}{1h} \\ \frac{1200mm}{h}$

Here it is,
20mm/m = 1200 mm/h

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A= x^2 -30x+225 The polynomial represents the area (in square feet) of the square playground. a. Write a polynomial that represe

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Answer:

a) The polynomial is equivalent to $A = (x-15)^{2}$ , and the side length of the playground is $x -15$ feet.

b) The perimeter of the playground, measured in feet, is $p = 4\cdot (x-15)$ .

Step-by-step explanation:

a) By Geometry, we know that area of the square is equal to the square of the side length. If $A = x^{2}-30\cdot x +225$ is the area of the square, then must be a perfect square trinomial, that is: