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zloy xaker [14]
3 years ago
8

Help please ASAP????????????

Mathematics
1 answer:
AnnZ [28]3 years ago
8 0

Answer:

Step-by-step explanation:

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Please help<br> solve |-3r| = 9
Anni [7]

Answer:

r =  - 3

Step-by-step explanation:

- 3r = 9 \\ r = 9 \div  (- 3) \\ r =  - 3 \\  \\ hope \: it \: helps...

8 0
3 years ago
Find the dimensions of a rectangle (in m) with area 1,728 m2 whose perimeter is as small as possible. (Enter the dimensions as a
lozanna [386]

Given :

Area of rectangle.

To Find :

The dimensions of a rectangle (in m) with area 1,728 m2 whose perimeter is as small as possible.

Solution :

Let, the dimensions of rectangle is x and y.

Area, A = xy.

x = A/y.              ....1)

Perimeter, P = 2( x + y )

Putting value of x in above equation, we get :

P = 2( y + \dfrac{A}{y})

For minimum P,

\dfrac{dP}{dx}=2( 1 - \dfrac{A}{x^2})=0\\\\A = x^2

SO, it is a square.

x=\sqrt{A}\\\\x=\sqrt{1728\ m^2}\\\\x=24\sqrt{3}\ m

Therefore, the dimensions are (24\sqrt{3},24\sqrt{3}).24\sqrt{3}

Hence, this is the required solution.

7 0
3 years ago
$6000 is invested at 5% compounded monthly for two years. How much will the investment be worth after
alexgriva [62]

1200 Because you divide.

6 0
3 years ago
I NEED HELP!!!!!
Jlenok [28]

Answer:

The answer would be \frac{1}{3}.

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
What is the value of i5 <br>1 <br>−i<br> i <br> −1
lozanna [386]
I’m assuming you mean: What is the value of i^5? This symbol (^) means that the 5 is an exponent of five.
If you did mean i^5, then the answer is i.

or to put it in simpler terms,
i^5=i

I hope this helped!
8 0
3 years ago
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