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3 years ago

What is the greatest common factor of the number and denominator of the rational expression below?

Mathematics

2 answers:

mariarad [96]3 years ago

8 0

Step-by-step explanation:

5(x+2)/(x+2)(x-3)= 5/(x-3)

GCF: x+2

Blababa [14]3 years ago

6 0

Answer:

Step-by-step explanation:

$\frac{5x+10}{x^2 -x-6}$ = $\frac{5(x+2)}{(x-3)(x+2)}$

GCF ( 5x + 10, x² - x - 6) = <em>x + 2</em>

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Answer:

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Step-by-step explanation:

180-50=130

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3 years ago

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ololo11 [35]

Answer:

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The following function is probability mass function. f left-parenthesis x right-parenthesis equals StartFraction 2x plus 1Over 2

lora16 [44]

Answer:

a) Mean = 2.6

B) Variance = 9.2

Step-by-step explanation:

We are given the following probability mass function in the question:

$F(x) = \dfrac{2x+1}{25}, x = 0,1,2,3,4$

a) Mean of random variable

$\mu = \displaystyle\sum x_iF(x_i)\\\\=0(\dfrac{1}{25}) + 1(\dfrac{2+1}{25}) + 2(\dfrac{4+1}{25}) + 3(\dfrac{6+1}{25}) + 4(\dfrac{8+1}{25})\\\\=\dfrac{3+10+21+36}{25} = \dfrac{70}{25} = 2.8$

b) Variance of the random variable

$\sigma^2 = \displaystyle\sum x_i^2F(x_i)\\\\=0^2(\dfrac{1}{25}) + 1^2(\dfrac{2+1}{25}) + 2^2(\dfrac{4+1}{25}) + 3^2(\dfrac{6+1}{25}) + 4^2(\dfrac{8+1}{25})\\\\=\dfrac{3+20+63+144}{25} = \dfrac{230}{25} = 9.2$

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3 years ago

USING THE STANDARD ALGORITHM FOR DIVISION

maw [93]

Refer to the attachment

7 0

3 years ago

Just 3 and 4 please thank you in advance ❤️

Ulleksa [173]

Answer:

3. 9

4. 24

Step-by-step explanation:

3. 15.5/3.1 = 5 45/5 = 9

4. 3r = 16p 128p = ?r

128/16 = 8x3 = 24

r = ref

p = player

/ = divide

6 0

3 years ago