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3 years ago

Write the explicit formula for the sequence 3,5,7,9,11

Mathematics

1 answer:

I am Lyosha [343]3 years ago

4 0

3+2=5
5+2=7
7+2=9
9+2=11
.
.
.
so d=2
-------------
formula:a(n)=a(1)+(n-1)d
a(n)=3+(n-1)2
a(n)=3+2n-2=2n+1

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larisa [96]

Answer and Step-by-step explanation:

116 b.

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3 years ago

What's the perimeter of a rectangle with length 12 m and width 5 m

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3 years ago

If the following system of equations was written as a matrix equation in the form AX = C, and matrix A was expressed in the form

IrinaVladis [17]

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Step-by-step explanation:

The given system of equation is

$2x+8y=7\\4x-2y=9$

from this we have the following matrices

$A_1 =\begin{bmatrix}\\2 &8 \\ \\4&2 \\\end{bmatrix}\ ,X=\begin{bmatrix}\\x\\ \\y\\\end{bmatrix}\text{and}\ C=\begin{bmatrix}\\7\\ \\9\\\end{bmatrix}$

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On comparing Matrix $A_1$ with Matrix A

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3 years ago

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ivolga24 [154]

Answer:

it's 3 it's it

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