All categories

3 years ago

The length of a rectangle is twice its width, while the

Mathematics

1 answer:

hoa [83]3 years ago

7 0

Answer: Length = 12 units

Width = 6 units

Step-by-step explanation:

Let the width of the rectangle be represented by x.

Since the length of a rectangle is twice its width, thus means that the length will be: = 2x

Perimeter of a rectangle = 2(l + w)

where,

L = length

W = width

Therefore,

Perimeter = 2(l + b)

36 = 2(2x + x)

36 = 2(3x)

36 = 6x

x = 36/6

x = 6

Width = 6 units

Length = 2 × Width = 2 × 6 = 12 units

You might be interested in

Which angles are right?

notka56 [123]

A & C are correct.

Reason - Forms 90°

See pic.

- Toodles!~

3 0

2 years ago

Please solve equations by completing square

BlackZzzverrR [31]

$x^2-4x+1=0\\
x^2-4x+4-3=0\\
(x-2)^2=3\\
|x-2|=\sqrt3\\
x-2=\sqrt3 \vee x-2=-\sqrt3\\
x=2+\sqrt3 \vee x=2-\sqrt3$

$x^2+6x-9=0\\
x^2+6x+9-18=0\\
(x+3)^2=18\\
|x+3|=\sqrt{18}=3\sqrt2\\
x+3=3\sqrt2 \vee x+3=-3\sqrt2\\
x=-3+3\sqrt2 \vee x=-3-3\sqrt2\\$

$x^2+20x+3=0\\
x^2+20x+100-97=0\\
(x+10)^2=97\\
|x+10|=\sqrt{97}\\
x+10=\sqrt{97} \vee x+10=-\sqrt{97}\\
x=-10+\sqrt{97} \vee x=-10-\sqrt{97}$

$x^2-2x-5=0\\
x^2-2x+1-6=0\\
(x-1)^2=6\\
|x-1|=\sqrt6\\
x-1=\sqrt6 \vee x-1=-\sqrt6\\
x=1+\sqrt6 \vee x=1-\sqrt6$

8 0

4 years ago

I accidentally clicked on B. I don’t understand please help

Pavel [41]

Answer:

{-3,2,5}

hope this helps :) plz brainliest if can

Step-by-step explanation:

4 0

3 years ago

Write an exponential function in the form y=ab^xy=ab x that goes through points (0,8) and (2,288)

timofeeve [1]

Answer:

y = 8•6^x

Step-by-step explanation:

Here, we want to write an exponential equation

To fully write this, we need the values of a and b

From the first coordinates given;

8 = a•b^0

a = 8 since b^0 = 1

Furthermore;

288 = 8•b*2

b^2 = 36

b = √36

b = 6

So we have ;

y = 8•6^x

4 0

3 years ago

Which could be the area of a face of the rectangular prism?

Dmitry_Shevchenko [17]

Answer:

The answer is

B. 6m²

Step-by-step explanation:

N/B: the drawing was not provided, so kindly find attached the drawing for your reference.

We know that the area of a rectangle = length *breath

From the diagram the rectangular surface has a length l=3m

Breath b=2m

Area = 3*2= 6m²

5 0

3 years ago