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3 years ago

Help on Number 8? I know Y=5 and the slope is undefined and x=2 but I don’t know what to do now.

Mathematics

1 answer:

Stels [109]3 years ago

3 0

To find the slope, use the equation of a line: $y = mx + b$

Plug in the values for x and y:

$5 = 2x + b$

We know that 2 can fit into 5 twice, which means 2*2 is 4.

We now have $5 = 4 + b$ .

If 5 is b more than 4, then this means that 4 is b less than 5. Subtract 4 from both sides, and you will have b = 1.

This means your equation is y = 2x + 1.

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Find the next 3 terms in the geometric sequence -36, 6, -1, 1/6, ...

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we are given

geometric sequence -36, 6, -1, 1/6, ...

first term is -36

$a_1=-36$

now, we can find common ratio

$r=\frac{6}{-36}$

$r=-\frac{1}{6}$

now, we can find nth term

$a_n=a_1(r)^{n-1}$

now, we can plug values

and we get

$a_n=36(-\frac{1}{6})^{n-1}$

now, we can find 5th term , 6th term, 7th term

fifth term:

$a_5=36(-\frac{1}{6})^{4}$

$a_5=\frac{1}{36}$

sixth term:

$a_6=36(-\frac{1}{6})^{5}$

$a_6=-\frac{1}{216}$

seventh term:

$a_7=36(-\frac{1}{6})^{6}$

$a_7=\frac{1}{1296}$

so, next terms are

$a_5=\frac{1}{36}$ , $a_6=-\frac{1}{216}$

, $a_7=\frac{1}{1296}$ .............Answer

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