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sergejj [24]
3 years ago
15

Simplify (2x + 1) (3.1 – 6)using the Distributive Property or the Area Method.

Mathematics
1 answer:
Tju [1.3M]3 years ago
4 0

Answer: -5.8x-2.9

Step-by-step explanation:

Hi, to answer this we will use the distributive property:

The distributive property allows to multiply a sum by multiplying each addend separately and then add the products.

(2x + 1) (3.1 – 6)

(2x [3.1]) +(2x[-6])+ (1 [3.1])+ (1 [-6])

6.2x-12x+3.1-6

-5.8x-2.9

Feel free to ask for more if needed or if you did not understand something.

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2 years ago
Monthly sales of a particular personal computer are expected to decline at the following rate of S'(t) computers per​ month, whe
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Answer:

S(t) = -18t^\frac{5}{3}+2440

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Step-by-step explanation:

Given function that shows the change rate of computers,

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On integrating,

\int S'(t) = -30\int t^{\frac{2}{3}} dt

S(t) = -30(\frac{t^{\frac{2}{3}+1}}{\frac{2}{3}+1})+C

S(t) = -30 (\frac{t^{\frac{2+3}{3}}}{\frac{2+3}{3}})+C

S(t) = -30(\frac{t^\frac{5}{3}}{\frac{5}{3}})+C

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According to the question,

S(0) = 2,440,

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S(t) = -18t^\frac{5}{3}+2440

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-18t^\frac{5}{3}+2440=1000

-18t^\frac{5}{3}=-1440

t^\frac{5}{3}=80

t = (80)^\frac{3}{5}\approx 13.86

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