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artcher [175]
2 years ago
14

Write down in terms of n an expression for the nth term of the following sequences 9 11 13 15 17

Mathematics
1 answer:
zvonat [6]2 years ago
5 0

Answer:

2n+7

Step-by-step explanation:

 +2  +2  +2  +2

9     11  13  15  17  so we start with 2n

2 ➡ 9 = +7   6 ➡ 13 = +7

4 ➡ 11 = +7   8 ➡ 15 = +7

So the answer is 2n + 7

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Solve the system by substitution.<br> 4y =<br> 5x -10y =-50
Trava [24]

Answer:

x = -20 ; y =-5

Step-by-step explanation:

Eqn. 1 ----> 4y = x

Eqn. 2 ----> 5x-10y = -50

(Simplifying eqn.2 further)

=>5(x-2y)=-50

=>x-2y=\frac{-50}{5} =-10

(Substituting the value of x from eqn. 1)

=>4y-2y=-10

=>2y=-10

=>y =\frac{-10}{2} =-5

Now, substituting the value of y in eqn. 1 ,

x = 4*(-5)=-20

7 0
2 years ago
PLEASE HELP ME!!! 5 POINTS+BRAINLEYEST!!!
Contact [7]

Answer:

A

Step-by-step explanation:

a) each state has different issues. it cant be c) because each state doesnt have the same issues and it cant be d because they can change the constitution depending on how everyone agrees or doesnt agree and it might be b) but its more likely going to be a)

7 0
3 years ago
Expand : (3x+5y)²<br>please answer​
alukav5142 [94]

Answer:

FOIL:  9x^2 +30xy + 25y^2

(3x + 5y)(3x+5y)

F: 3x*3x

O: 3x*5y

I: 5y*3x

L: 5y*5y

9x^2 +30xy + 25y^2

Step-by-step explanation:

4 0
3 years ago
What is the area or the figure below?
nataly862011 [7]
U have to cross out the 10 then u have those 4 5s 5x5=25 5x5=25 25+25=50.





(My answer might be wrong so wait until other ppl answer. If I got riGhT like my thing -3-)
5 0
3 years ago
Read 2 more answers
Please help me on this math question
xxMikexx [17]
1/10 of an hour (D) is correct. Hope this helped :)
5 0
2 years ago
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