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DIA [1.3K]
3 years ago
10

2\div7=2÷7=2, divided by, 7, equals ??Question mark Choose 1 answer:(Choice A) A \dfrac97 7 9 ​ start fraction, 9, divided by, 7

, end fraction (Choice B) B \dfrac72 2 7 ​ start fraction, 7, divided by, 2, end fraction (Choice C) C \dfrac27 7 2 ​ start fraction, 2, divided by, 7, end fraction (Choice D) D \dfrac29 9 2 ​
Mathematics
1 answer:
Anvisha [2.4K]3 years ago
4 0

Answer:

(Choice C) C \dfrac27 7 2 ​ start fraction, 2, divided by, 7, end fraction

Step-by-step explanation:

2÷7=2, divided by, 7, equals

(Choice A) A \dfrac97 7 9 ​ start fraction, 9, divided by, 7, end fraction

(Choice B) B \dfrac72 2 7 ​ start fraction, 7, divided by, 2, end fraction

(Choice C) C \dfrac27 7 2 ​ start fraction, 2, divided by, 7, end fraction

(Choice D) D \dfrac29 9 2 ​

2÷7=2, divided by, 7, equals (Choice C) C \dfrac27 7 2 ​ start fraction, 2, divided by, 7, end fraction

2 ÷ 7

= 2/7

= 0.2857142857142

= 0.29

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4 0
3 years ago
Determine whether or not 630 is a triangular number. start with the formula t n = n ( n + 1 ) 2 and then use the quadratic formu
ziro4ka [17]
Triangular sequence = n(n + 1)/2

If 630 is a triangular number, then:

n(n + 1)/2  = 630

Then n should be a positive whole number if 630 is a triangular number.

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n(n + 1)  = 2*630

n(n + 1)  = 1260

n² + n = 1260

n² + n - 1260 = 0

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n² + n - 1260 = 0

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n = 35 is valid.

Since n is a positive whole number, that means 630 is a triangular number.

So the answer is True.
7 0
3 years ago
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