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3 years ago

Simplify the polynomial (4n2 + 3n - 5) - (2n2 + 3n+ 6)

Mathematics

2 answers:

scZoUnD [109]3 years ago

5 0

We keep brackets

(4n^2 + 3n - 5 ) - (2n^2 + 3n + 6)

We change signs and we group

4n^2 - 2n^2 + 3n - 3n - 5-6

We simplify

2m^2 - 11

Answer: = 2.n^2 - 11

saul85 [17]3 years ago

3 0

Answer:

2n^2 - 11

steep by steep explanation

=(4n^2 + 3n -5) -(2n^2 + 3n +6)

= 4n^2 +3n -5 - 2n^2 - 3n -6

= 2n^ - 11

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(a) 7.6%

(b) 46.2% 42.4%

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(a)According to the definition of Continuous probability distribution

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$f(x) = \frac{F(x + h) - F(x - h)}{(x + h) - (x - h)}$

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(b) Given F(69) = 0.5

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$f(69) = \frac{F(69) - F(69 - 0.2)}{0.2}$

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$f(x) = \frac{d}{dx}F(x)$

$f(x) = \frac{F(x) - F(x - h)}{x - (x - h)}$

$f(69) = \frac{F(69) - F(69 - 0.4)}{0.4}$

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