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Vinil7 [7]
2 years ago
13

(12,-1), (-2,-3)please help​

Mathematics
1 answer:
Leviafan [203]2 years ago
4 0

Answer:

13, _1 (12) (-2,3) 1 answer ...<em>by</em><em> </em><em> </em><em>maths</em><em> </em>

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Problem 3.2.14a<br><br> Show that 2^2x+1 +1 is divisible by 3.
elena-s [515]

Answer:

The given expression is divisible by 3 for all natural values of x.

Step-by-step explanation:

The given expression is

2^{2x+1}+1

For x=1,

2^{2(1)+1}+1=2^{3}+18+1=9

9 is divisible by 3. So, the given statement is true for x=1.

Assumed that the given statement is true for n=k.

2^{2k+1}+1

This expression is divisible by 3. So,

2^{2k+1}+1=3n              .... (1)

For x=k+1

2^{2(k+1)+1}+1

2^{2k+2+1}+1

2^{(2k+1)+2}+1

2^{2k+1}2^2+1

Using equation (1), we get

(3n-1)2^2+1

(3n)2^2-2^2+1

(3n)2^2-4+1

(3n)4-3

3(4n-1)

This expression is also divisible by 3.

Therefore the given expression is divisible by 3 for all natural values of x.

4 0
3 years ago
When authors mean something ________
xeze [42]
That mean something is suspicious because they are hiding something from u
4 0
3 years ago
Can 927/100 be simplified
Genrish500 [490]
No, it cannot be simplified.  
Prime factors of 927:3*3*103
Prime factors of 100:2*2*5*5
No factors are in common, so this is the most simplified state.
3 0
3 years ago
If 2x2 -- 5x + 7 is
Leviafan [203]

Answer:

18

Step-by-step explanation:

5 0
3 years ago
3/4=j-1/2 solve the equation check your solution
DIA [1.3K]
3/4= j-1/2
first to add 1/2 to both sides to solve for j 
3/4 + 1/2= j
second you find a common denominator in order to add 3/4 and 1/2, the common denominator would be 4, you would have to change 3/4 at all because the denominator is already 4 but in order to make the denominator of 1/2, 4 you would have to multiply both the denominator and numerator by 2 so 
3/4 + 2/4 = 5/4
so 5/4 =j

to check your answer you plug 5/4 in for j 
3/4 = 5/4 -1/2
again you need to find a common denominator between 5/4 and 1/2 which again would be 4, and again you wouldn't change 5/4 but you would multiply both the numerator and the denominator of 1/2 so 
3/4= 5/4-2/4
5-2= 3 and you would keep the 4 so 
5/4 - 2/4 = 3/4

so j =  5/4
5 0
3 years ago
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