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frutty [35]
3 years ago
6

Which of the following formulas, when evaluated using rational values for the variables, will result in an irrational number?

Mathematics
1 answer:
irakobra [83]3 years ago
6 0

\bf{\blue{\underline{\underline{\pink{SOLUTION:-}}}}}

\mathcal\red{Correct\:Answer:-}

A) The formula of the area of a circle .

  • Area of Circle = π r² .

  • In the formula of area of a circle “π” is present, which is a irrational number .
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steposvetlana [31]

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3 0
3 years ago
#13. A lighthouse casts a 128-foot shadow. A nearby lamppost that measures 5 feet 3
Ad libitum [116K]

Answer:84

Step-by-step explanation:Using proportions, it is found that the height of the lighthouse is of 84 ft.

This question is solved by proportions, using a rule of three.

For a height of 5.25 feet, the shadow is of 8 feet. What is the height when the shadow is of 128 feet?

The rule of three is:

5.25 feet - 8 feet

x feet - 128 feet

Applying cross multiplication:

The height of the lighthouse is of 84 ft.

credit:joaobezerra

please rate and thanks

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3 years ago
A hospital gives a survey to all surgical patients asking them to rate the quality of their hospital experience. One month after
polet [3.4K]
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The answer is - <span>Some patients who have a poor hospital experience also have post-surgical complications.

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4 0
3 years ago
Read 2 more answers
Graph the following inequality 3x - 2y ≤ 6
Komok [63]
3x - 2y < = 6
-2y < = -3x + 6
y > = 3/2x - 3

slope = 3/2......y int = (0,-3)....x int = (2,0)

u have an equal sign, so the line will be solid
ur slope is positive, so ur line is going up (increasing)


start at (0,-3)...and since the slope is 3/2, go up 3 spaces and to the right 2 spaces....keep doing this and u will eventually cross the x axis at (2,0)

and ur line has a greater then sign, so shading occurs above the line
7 0
4 years ago
2. The length of a rectangle is 5 cm more than its width. If the perimeter of the rectangle is 40cm, find the area of the rectan
NikAS [45]

Answer:

area of the rectangle =

{93.75cm}^{2}

Step-by-step explanation:

width = x cm

length = x + 5 cm

Perimeter = 2(length + width)

p = 2(x + (x + 5)) \\ 40 = 2(x + x + 5) \\ 40 = 2(2x + 5) \\ 40 = 4x + 10 \\ 40 - 10 = 4x \\ 30 = 4x \\  \frac{30}{4}  = x \\ 7.5 = x

width = 7.5cm

length = 7.5 + 5 = 12.5cm

Area of the rectangle = length × width

a = 12.5cm \times 7.5 cm\\ a = 93.75 {cm}^{2}

3 0
3 years ago
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