2 years ago

39 is 40% of what number (please explain)

Mathematics

1 answer:

r-ruslan [8.4K]2 years ago

6 0

Answer:

97.50

Step-by-step explanation:

dont have one XD

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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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3 years ago

Ernest wants to buy 21 new books for his book collection. If the average price for a

lukranit [14]

Answer:

If each book cost $20.45 then you times it by 21 and the answer you would get is 429.45

Step-by-step explanation:

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2 years ago

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What is the value of x to the nearest degree?

evablogger [386]

I think B is the closest answer

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3 years ago

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Please answer! Very easy and will mark brainlist.

kondor19780726 [428]

Answer:

18.57

Step-by-step explanation:

First you have to simplify the equation using cross-multiplication

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Can I get some help

Cloud [144]

The answer should be B.

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3 years ago