3 years ago

Geometric sequences Generate the first 4 terms a1=1 r=2

Mathematics

1 answer:

Alla [95]3 years ago

7 0

If the first term is 1, and the ratio is 2

The first 4 terms are 1, 2, 4, 8

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What is the radius of a circle whose equation ?????

KatRina [158]

$r = \sqrt{ L^{2} + K^{2} -C} = \sqrt{ (-4)^{2} + (3)^{2} - 21 } = \sqrt{4} = 2$

where L is negative half the coefficient of x and K is negative half the coefficient of y and c is the term free of x and y

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4 years ago

For what values of x is the expression (x - 4)^2 > 0?

ad-work [718]

Answer:

$x4$

Step-by-step explanation:

Solve we have the inequality:

$(x-4)^2>0$

Let's solve it like a normal equation first. So, pretend the inequality is an equal sign:

$(x-4)^2=0$

Solve for x. Zero Product Property:

$x-4=0\text{ or } x-4=-0$

Add 4 to both sides for both equations:

$x=4\text{ or } x=4$

So, our roots are at x=4 and x=4.

Since our original inequality is greater than, this means that our solution will be all values to the left of our first zero and all values to the right of our second zero.

Therefore, our solution is:

$x4$

Simply put, our x can be anything except for 4 itself.

And we're done!

8 0

3 years ago

Read 2 more answers

Which fraction has a repeating decimal as its decimal expansion?

Kobotan [32]

Answer:

Step-by-step explanation:

a=0.15789474