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2 years ago

Evaluate 5/7÷1/7 I need help on bye

2 answers:

OverLord2011 [107]2 years ago

8 0

I’ll tell u the step by step!

5 1
- divided by -
7 7

you need to flip the 2nd fraction because that’s the way division is lol

and then u times them

so it looks like this

5 7
- x -
1 1

5x7 equals 35
1 times 1 = 1

the answer is 35 :)

MArishka [77]2 years ago

4 0

Answer:

5/7 ÷ 1/7 = 5

Step-by-step explanation

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Murljashka [212]

Its false of course;))

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3 years ago

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The 5th term in a geometric sequence is 40. The 7th term is 10. What is (are) the possible value(s) of the 4th term?

Lena [83]

Answer:

possible values of 4th term is 80 & - 80

Step-by-step explanation:

The general term of a geometric series is given by

$a(n)=ar^{n-1}$

Where a(n) is the nth term, r is the common ratio (a term divided by the term before it) and n is the number of term

Given, 5th term is 40, we can write:

$ar^{5-1}=40\\ar^4=40$

Given, 7th term is 10, we can write:

$ar^{7-1}=10\\ar^6=10$

We can solve for a in the first equation as:

$ar^4=40\\a=\frac{40}{r^4}$

Now we can plug this into a of the 2nd equation:

$ar^6=10\\(\frac{40}{r^4})r^6=10\\40r^2=10\\r^2=\frac{10}{40}\\r^2=\frac{1}{4}\\r=+-\sqrt{\frac{1}{4}} \\r=\frac{1}{2},-\frac{1}{2}$

Let's solve for a:

$a=\frac{40}{r^4}\\a=\frac{40}{(\frac{1}{2})^4}\\a=640$

Now, using the general formula of a term, we know that 4th term is:

4th term = ar^3

Plugging in a = 640 and r = 1/2 and -1/2 respectively, we get 2 possible values of 4th term as:

$ar^3\\1.(640)(\frac{1}{2})^3=80\\2.(640)(-\frac{1}{2})^3=-80$

possible values of 4th term is 80 & - 80

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4 years ago

Write 3.6 in a word form

Anit [1.1K]

Three and six tenths

Hope I helped!

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3 years ago

What is the opposite of the opposite of any integer?

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PLEASE HELP PLEASEEEE!!! Number 3

deff fn [24]

The equation for this is a^2+b^2=c^2 so your equation would be 7^2+20^2=X
So you square the 7 and the 20 then take the square root of X and you get
X=21.19
:)

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3 years ago