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meriva
3 years ago
9

2. (4a - 8b + 12c) (-5/2) Simply using distributive property and combining like terms​

Mathematics
1 answer:
pickupchik [31]3 years ago
6 0

Answer:

-10a + 20b - 30c

Step-by-step explanation:

(4a - 8b + 12c)(-5/2)

=(4a + - 8b + 12c)(-5/2)

=(4a)(-5/2) + (-8b)(-5/2) + (12c)(-5/2)

=-10a + 20b -30c

(Also Mathpapa is great for this kind of problems and Mathw*y is also a good one I use those two all the time they both saved me so many times)

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Answer:

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Step-by-step explanation:

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3 years ago
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Find the area and the circumference of the circle with the radius 6yd.
fgiga [73]

Answer:

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Step-by-step explanation:

The formula of an area of a circle:

A=\pi r^2

The formula of a circumference of a circle:

C=2\pi r

<em>r</em><em> - radius</em>

<em />

We have <em>r = 6yd</em>.

Substitute:

A=\pi(6^2)=36\pi\ yd^2

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If you want round the answers, then use <em>π ≈ 3.14</em>

A\approx(36)(3.14)=113.04\ yd^2

C\approx(12)(3.14)=37.68\ yd

3 0
3 years ago
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stepan [7]

Answer:

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4 0
3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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