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3 years ago

What is (x+5)(x-1) ? ( expanding brackets )

Mathematics

1 answer:

maks197457 [2]3 years ago

3 0

Answer:

x^2 + 4x - 5

Step-by-step explanation:

We need to simplify this

xx - 1 * x +5x - 5 * 1

Simplify further

x^2 + 4x - 5

Thus, we have our answer

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What are the components of division and what do they mean (Like the divisor and stuff)

pashok25 [27]

Answer: The division is a method of distributing a group of things into equal parts. It is one of the four basic operations of arithmetic, which gives a fair result of sharing.

The division is an operation inverse of multiplication. If 3 groups of 4 make 12 in multiplication; 12 divided into 3 equal groups give 4 in each group in division.

The main goal of the division is to see how many equal groups or how many in each group when sharing fairly.

For example:

There are 16 balls and 4 boxes, how to put 16 balls into four equal sized boxes?

Step-by-step explanation: Therefore, 4 balls should be kept in each box.

Mathematical notation for division

There are various signs which can be used to indicate division such as ÷, /.

For example:

8 ÷ 2

8/2

Special names for each character in Division

Each part involved in a division equation has a special name.

Dividend ÷ divisor = quotient

Dividend: The dividend is the number that is being divided in the division process.

Divisor:The number by which dividend is being divided by is called divisor.

Quotient: A quotient is a result obtained in the division process.

18 ÷ 3 = 6

image5 image4 image6

Dividend divisor quotient

So, in the above process where we divided 16 balls into 4 equal groups;

The dividend is 16, the divisor is 4 and thus the quotient is 4.

3 0

3 years ago

Physicist use models to work out the pressure inside an aeroplane. The length of a model aeroplane is 16cm and the length of the

Crank

$1600:60\\80:3$

Every 4/5 centimeters = 3 meters.

5 0

4 years ago

Which line segments have a positive slope?

faltersainse [42]

Answer:

CD and EF .....................

4 0

3 years ago

8 Line in the xy-plane contains points from each of Quadrants II, III, and IV, but no points from Quadrant I. Which of the follo

iren2701 [21]

Answer:

The correct option is D.

Step-by-step explanation:

The slope of a line is the change in y with respect to x.

$m=\frac{y_2-y_1}{x_2-x_1}$

If the slope of a line is undefined it means it is a vertical line and a vertical line can not passes through three quadrants. So, option A is incorrect.

If the slope of a line is 0 it means it is a horizontal line and a horizontal line can not passes through three quadrants. So, option B is incorrect.

If the slope of a line is positive it means the value of y increases as x increases.

Since it is an increasing line, therefore after a certain period both x and y will positive. It means the line will passes through first quadrant. So, option C is incorrect.

If the slope of a line is negative it means the value of y decreases as x increases. It can passes through each of Quadrants II, III, and IV.

Therefore the correct option is D.

6 0

3 years ago

In a class there are 15 students. 8 of them like playing soccer, 6 of them like swimming, and 2 like both and swimming and playi

xenn [34]

Answer:

6+8-2=12, 15-12=3 answer=3

5 0

3 years ago