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serg [7]
3 years ago
12

4.   Simplify the following expression: 3(5 – 12) + 4 ÷ 2  (1 point)

Mathematics
1 answer:
erastovalidia [21]3 years ago
5 0
The first one is - 19 and the second one is -14 which is not an answer so maybe the choices are incorrect but basically you use bodmas
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The area of a square is decreasing at a rate of 43 square inches per second. At the time when the side length of the square is 7
Sergio039 [100]

Answer:

26.230 Inches per second.

Step-by-step explanation:

Since, Area of square is decreasing at the rate of 43 square inches per second And area is directly proportional to square of the side , So

Its side will be decreasing at the rate of \sqrt{43} inches per second .

Now,

Perimeter of square is directly proportional to 4 times of the side of the square.

so Perimeter of square will be decreasing at the rate of 4× \sqrt{43}

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2 years ago
Given that y varies inversely as x, and y = 8 when x = 3, what is the value of y when x = 12?
NeTakaya

Answer:

y = 2 when x =12

Step-by-step explanation:

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8 = k/3

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3 0
2 years ago
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Sonja [21]

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3 years ago
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