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Sladkaya [172]
3 years ago
15

Find the inverse of A(r)=15+3r

Mathematics
2 answers:
Finger [1]3 years ago
8 0

Answer:

A(r)=15-3r

Step-by-step explanation:

Alex Ar [27]3 years ago
8 0

Answer:

A(r)=15-3r

Step-by-step explanation:

switch the sign of 3r to make it -3r

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What is the average of -2.6, 1.8, -3.3, -2.7, 2.2 ?<br> I dont understand this.
olya-2409 [2.1K]
Average = Mean

To find the mean, add up the numbers and divide it by how many numbers there are.

So,  -2.6+1.8+(-3.3)+(-2.7)+2.2=-4.6

There are 5 numbers in total.

-4.6 \div 5=-0.92

To do these types of division, ignore the decimal and add a 0 at the end.

So we can do:
-460\div5=-92

And put back the decimal.
Hope this helps :)
4 0
3 years ago
Please help, thanks!
Mamont248 [21]
((-4x^3)(y^4))^-3
--------------------------
(2xy^4)^-4
16x^4y^16
=------------------------
-64x^9y^12
-16y^4
=------------------------
64x^5
-y
=------------------------
4x^5

So the final answer is:

-y^4
-------
4x^5

(Btw if "^" is in front of a number, that means it is an exponent, so when your writing this on paper, just write it as a regular exponent without the "^". I had to do that since I'm on a computer.)  

Hopefully this was helpful in some way. 

7 0
3 years ago
A right rectangular prism is 1012 m wide, 1512 m long, and 3 m tall.
Olegator [25]
1012 x 1512 x 3 = 4590432 . the only suitable answer would be A<span />
7 0
3 years ago
Read 2 more answers
How do you factor 2y^2 +13 +21
ella [17]

Answer:

2

(

y

2

+

17

)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve:<br><br><img src="https://tex.z-dn.net/?f=%5Cunderset%7Bx%5Crightarrow~3%7D%7B%5Clim%7D~%5Cdfrac%7B2x%5E2-18%7D%7Bx%5E2-3x
vodomira [7]

Hello, please consider the following.

\displaystyle \lim_{x\rightarrow3}~\dfrac{2x^2-18}{x^2-3x} \\ \\ \\ =\lim_{x\rightarrow3}~\dfrac{2(x^2-3^2)}{x(x-3)} \\ \\ \\ =\lim_{x\rightarrow3}~\dfrac{2(x-3)(x+3)}{x(x-3)} \\ \\ \\ =\lim_{x\rightarrow3}~\dfrac{2(x+3)}{x} \\ \\ \\=\dfrac{2(3+3)}{3}\\ \\ \\=\dfrac{2*3*2}{3} =\Large \boxed{\sf \bf \ 4 \ }

Thank you

8 0
3 years ago
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