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8090 [49]
3 years ago
5

What is the sum of two numbers a and b decreased by their product?

Mathematics
2 answers:
natka813 [3]3 years ago
8 0

Answer:

(a+b) - (ab)

Step-by-step explanation:

sum of two numbers a and b decreased by their product

(a+b) - (ab)

Oduvanchick [21]3 years ago
6 0

Answer:(a+b) - (ab)

Step-by-step explanation:


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A competitive knitter is knitting a circular place mat. The radius of the mat is given by the formula
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Answer: A. A'(t)=\frac{4356\pi}{(t+11)^{3}}-\frac{527076\pi}{(t+11)^{5}}

              B. A'(5) = 1.76 cm/s

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Using r(t)=3-\frac{363}{(t+11)^{2}}

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Then

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Multipying and simplifying:

\frac{dA}{dt}=\frac{4356\pi}{(t+11)^{3}} -\frac{527076\pi}{(t+11)^{5}}

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A'(5)=\frac{4356\pi}{(5+11)^{3}} -\frac{527076\pi}{(5+11)^{5}}

A'(5)=\frac{4356\pi}{4096} -\frac{527076\pi}{1048576}

A'(5)=\frac{2408693760\pi}{4294967296}

A'(5)=1.76268

At 5 seconds, the area is expanded at a rate of 1.76 cm/s.

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