4 years ago

I need number 2 and 3

Mathematics

1 answer:

Vilka [71]4 years ago

5 0

Answer:

Its 2 and only 2 press 2 its true press 2 please

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Idk it might be 8.6 and 2.0

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3 years ago

Simplify each expression then state the coefficient of the variable in each expression <br> X+x+3+4

oksian1 [2.3K]

Answer:

2x +7

The coefficient of the variable is 2

Step-by-step explanation:

x+x+3+4

Combine like terms

2x +7

The coefficient of the variable is 2

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3 years ago

A clock has a face in the shape of a circle the distance across a circle is 12 inches what is the area of the clock face in squa

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18.84 square inches

Step-by-step explanation:

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3 years ago

Find the sum of series 4/(4n-3) (4n+1)

ANTONII [103]

$\dfrac4{(4n-3)(4n+1)}=\dfrac1{4n-3}-\dfrac1{4n-1}$

Assuming the sum starts at $n=1$ , the $N$ th partial sum is

$\displaystyle\sum_{n=1}^N\left(\frac1{4n-3}-\frac1{4n-1}\right)=\left(1-\frac15\right)+\left(\frac15-\frac19\right)+\cdots+\left(\frac1{4N-7}-\frac1{4N-3}\right)+\left(\frac1{4N-3}-\frac1{4N+1}\right)$
$\displaystyle\sum_{n=1}^N\left(\frac1{4n-3}-\frac1{4n-1}\right)=1-\frac1{4N-1}$

As $N\to\infty$ , you're left with simply 1.