First thing you should do is Distribute...
=(2)(2)+(2)(−x)+−3x
=4+−2x+−3x
Next is to Combine like terms..
=4+−2x+−3x
=(−2x+−3x)+(4)
Answer..
=−5x+4

Good luck with your studies~ ^//^

8 0

3 years ago

There were 240 students at a primary school. After some new students were transferred into the school, there were 282 students i

stepan [7]

Answer:

Numbers of students at a primary school before= 240

Number of increased students =42

Again,

Increased number of students in percent(%)= 42/240×100%= 17.5%

Therefore 17.5% students are increased this year.

3 0

3 years ago

Read 2 more answers

What is the number of grams in 1.25x10^25 molecules of aluminum oxide

aalyn [17]

Answer:

Mass = no. of molecules / 6.023 * 10^ 23 * Molar mass

Step-by-step explanation:

Molar mass of CO2 = 44g/mol

1.5

⋅

6.023

⋅

= 51.5 moles of CO2

51.5

⋅

44g/mol

2266 grams

Hope this helped

7 0

3 years ago

Your Assignment

Elodia [21]

Given:

The track is a square with a half circle on its left and right sides.

The area of the square is 128 square feet.

To find:

The length of the track.

Solution:

Let side length of the square be x.

Area of square is

$Area=(side)^2$

$128=x^2$

Taking square root on both sides.

$\sqrt{128}=x$

From the given table 127.7 is closed to 128. So, $\sqrt{128}$ is 11.3.

$x=11.3$

Diameter of circle = Side of square = 11.3.

The track has 2 sides of the square and the distance around 1 complete circle(s).

Radius of circle is

$\dfrac{11.3}{2}=5.65$

Length of the truck is sum of length of square and radii of two circles.

$Length =11.3+5.65+5.65$

$Length =22.6$

Therefore, the total length of the truck is 22.6 feet.

5 0

3 years ago