2 years ago

What are the factors of 9a-3

Mathematics

1 answer:

yulyashka [42]2 years ago

7 0

Answer:

9, -3

Step-by-step explanation:

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Given the geometric sequence where a1 = 3 and r = √2 find a9

Zigmanuir [339]

Answer:

$a_9=48$

Step-by-step explanation:

we are given

sequence is geometric

so, we can use nth term formula

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

we have

$a_1=3$

$r=\sqrt{2}$

we have to find a9

so, we can plug n=9

we get

$a_9=3(\sqrt{2})^{9-1}$

$a_9=2^4\cdot \:3$

$a_9=48$

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2 years ago

please help! find the scale factor and ratio of perimeters for a pair of similar octagons with areas 64ftsq and 81ftsq. i need t

kati45 [8]

Answer:

the scale factor and the ratio of their perimeters is 8/9

Step-by-step explanation:

k^2=area 1/area 2

k^2=64/81

=square root if k^2=square root of 64/81

=k=8/9

4 0

1 year ago

Find f-1(x) if f(x)=2x+1

Mila [183]

Answer:

${f}^{ - 1} (x) = (2x + 1) ^{ - 1} \\ \\ {f}^{ - 1} (x) = \frac{1}{2x + 1}$

I hope I helped you^_^

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2 years ago

Hey guys can you please help me with this math problem?

shusha [124]

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Step-by-step explanation:

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What is the circumference of a circle that has a diameter of 12 feet

frosja888 [35]

Answer:

i think it's 37.7

Step-by-step explanation:

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1 year ago