Question

Give answer , If anyone help please help

Answer 1

Answer:

sorry

Step-by-step explanation:

thanks for free points

Answer 2

Answer:

7} a2

Que 2 a} 2a

d=3

27/2{12+78}=27/2{90}

1215.

Que 2 b} From 1 to 140 natural numbers divisible by 4 are like that

4,8,12,.............140.

a=4

d=4

n=35

so there are 35 natural numbers divisible by 4.

Step-by-step explanation:

Que 2a} Sn=n/2{2a+[n-1]d}

Sn=27/2[2{6}+26{3}]

=27/2 x {12+78}

=27/2 x {90}

=27*45

=1215.

Que 2 b} l=a+{n-1}d

140=4+{n-1}4

140-4={n-1}4

136/4=n-1

34+1=n

n=35

so there are 35 natural numbers divisible by 4.

Hope this is helpful

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