All categories

2 years ago

Find the perimeter & area of the rectangle. 2x-3 5(x-2)

Mathematics

1 answer:

shtirl [24]2 years ago

4 0

Step-by-step explanation:

The perimeter of a rectange is :

P = 2(L+B)

L is length and B is breadth

L = 2x-3 and B = 5(x-2)

⇒P = 2(L+B)

P = 2[2x-3+5(x-2)]

P = 2[2x-3+5x-10]

P = 2[7x-13]

The area of a rectangle is :

A = L×B

$A=(2x-3)\times 5(x-2)\\\\A=(2x-3)\times(5x-10)\\\\A=10x^2-10x-15x+30\\\\A=10x^2-25x+30$

You might be interested in

Write the next two terms in the pattern 9,27,81,243

Basile [38]

Answer:

729, 2,187, 6,561‬

Hope this helps!

8 0

2 years ago

Read 2 more answers

Emanuel has 745 pictures in his phone.His memory is getting full, so he starts deleting 20 pictures every day. Define each varia

BigorU [14]

Let f be the function with variable n, which gives the number of pictures left in the phone after deleting pictures for n-days.

So f(1) gives the number of photos left after 1 day of deleting photos

f(2) gives the number of photos left after 2 days of deleting photos

and so on.

f(1)=745-20
f(2)=745-20-20=745-20*2
f(3)=745-20-20-20=745-20*3

so clearly f(n)=745-20n

Answer:

the algebraic expression is f(n)=745-20n,

where n is the n'th day of deleting photos, and f is the number of photos left after n days of deleting.

7 0

3 years ago

Can anyone help me pls ( if you can, can you do it on paper and post it with the answer)

Margaret [11]

<h2>Answer: x = 6</h2>

* = things that have changed or are being changed

<h2>Explanation:</h2>

1. rearrange terms

*4 4 + 3 * = 5 + 2 + 2 0

*3x + 44* = 5x + 2 + 20

2. combine like terms

3 + 44 = *5x + 2* + 20

3 + 44 = *7x* + 20

3. Subtract 4 4 from both sides of the equation

3x + 44 = 7x + 20

3x + 44 *-44* = 7x + 20 *-44*

4. Simplify

(Subtract the numbers)

3x + *44 - 44* = 7x + 20 - 44

3x = 7x + 20 - 44

(Again)

3x = 7x + 20 *- 44*

3x = 7x - 24

5. Subtract 7 from both sides of the equation

3x = 7x - 24

3x *- 7x* = 7x - 24 *- 7x*

6. Combine like terms

*3x - 7x* = 7x - 24 - 7x

*-4x* = 7x - 24 - 7x

(Again)

-4x = *7x* - 24 *- 7x*

-4x = - 24

7. Divide both sides of the equation by the same term

-4x = - 24

$\frac{-4x}{*-4*} = \frac{-24}{*-4*}$

8. Simplify

(Cancel terms that are in both the numerator and denominator)

$* \frac{-4x}{-4} * = \frac{-24}{-4}$

*x* = $\frac{-24}{-4}$

(Divide the numbers)

x = $\frac{-24}{-4}$

x = 6

5 0

2 years ago

How do you solve domain and range

elixir [45]

Go to the x and y and find the numbers between them and mark them...tell me if this is confusing or not

4 0

3 years ago

the graph represents a function with the form f(x)=asin(bx+c) which values of a,b, and c are possible

love history [14]

Answer:

a= 6, b= 3, c=pi

Step-by-step explanation:

2020 egdenuity just took the test

4 0

3 years ago