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# what is the awenswer to this math problem 7C 4

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what is the awenswer to this math problem 7C 4

Jul 10, 2015

#6
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#### Gruß radix !

Jul 10, 2015

#1
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what is the awenswer to this math problem 7C 3

Jul 10, 2015
#2
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nCr(7,4)

$${\left({\frac{{\mathtt{7}}{!}}{{\mathtt{4}}{!}{\mathtt{\,\times\,}}({\mathtt{7}}{\mathtt{\,-\,}}{\mathtt{4}}){!}}}\right)} = {\mathtt{35}}$$

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Jul 10, 2015
#3
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what is the awenswer to this math problem 7C 4

what is the awenswer to this math problem 7C 3

$$\small{\text{7C4 = 7C3 = \dbinom74 = \dbinom73= 35 }}$$ Jul 10, 2015
#4
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### 7*16²  +  12*16  + 4   =    1988       in the decimal system

$${\mathtt{7}}{\mathtt{\,\times\,}}{{\mathtt{16}}}^{{\mathtt{2}}}{\mathtt{\,\small\textbf+\,}}{\mathtt{12}}{\mathtt{\,\times\,}}{{\mathtt{16}}}^{{\mathtt{1}}}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}}{\mathtt{\,\times\,}}{{\mathtt{16}}}^{{\mathtt{0}}} = {\mathtt{1\,988}}$$

#### Gruß radix !

Jul 10, 2015
#5
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I don't understand your answer Radix Jul 10, 2015
#6
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