All categories

3 years ago

What is the area of a rectangle whose length is (2x-1) cm and whose width is (X+2) cm?help.

Mathematics

1 answer:

Bezzdna [24]3 years ago

7 0

Answer:

2x^2 + 3x - 2

Step-by-step explanation:

=> area of rectangle = length*width

=> length = (2x -1)

=> width = (x + 2)

=> area = (2x - 1) (x + 2)

=> area= 2x(x + 2) - 1(x + 2)

=> area = 2x^2 + 4x - 1x - 2

=> area = 2x^2 + 3x - 2

hope it helps

You might be interested in

Which describes the solution of the inequality y > −15? Select all the points that are part of the solution.

Svetllana [295]

Step-by-step explanation:

y > -15

y is bigger than -15

= -14 , -13 , -12 , -11 , -10 , etc . . .

8 0

3 years ago

Explain your answer !! Have a nice day Will give braisnlt

Viktor [21]

Answer:

(3,-4) or x=3 and y= -4

Step-by-step explanation:

I'm going to solve this by substitution

We first need to get a variable by itself in one of the two equations (it doesn't matter which variable and the equation you do the work on doesn't matter either)

I'm going to solve for y in the second equation

-4x-4y=4

add 4y and subtract 4 from both sides to get

-4x-4=4y

Divide by 4 to get

-x-1=y

We can plug this value in for y into the first equation and get

4x+5(-x-1)= -8

Solve for x

4x-5x-5= -8

-x-5= -8

-x= -3

x=3

We can plug this value into one of the first two equations and solve for y

4(3)+5y= -8

12+5y= -8

5y= -20

y= -4

Therefore the solution is (3,-4) or x=3 and y= -4

8 0

2 years ago

(no links you bot) name at least two independent variables that could result in a change in a monthly electric bill

viva [34]

Answer:

In the case of the monthly electricity cost, the independent variables could also include the non-production machines using electricity, the physical size of the products, the skill level of the operators, the outside temperature and humidity, etc.

Step-by-step explanation:

LOL

hope this helps

7 0

3 years ago

Read 2 more answers

How you this and the answers

gregori [183]

Answer:

Step-by-step explanation:

? whats the question

6 0

3 years ago

Which of the following figure is impossible to draw?

Fynjy0 [20]

D.)

When you say a equalterial triangle all sides have to be equal. In this case. 60,60,60 is a equilateral if it’s a obtuse this would be false.

4 0

2 years ago

What is the area of a rectangle whose length is (2x-1) cm and whose width is (X+2) cm?help.​

What is the area of a rectangle whose length is (2x-1) cm and whose width is (X+2) cm?help.