All categories

3 years ago

What is the sum of 5+2 or 2+5? why is the sum the same?

Mathematics

2 answers:

natta225 [31]3 years ago

5 0

The sum of 5+2 is 7. It's the same thing as 2+5 because addition is the commutative property.

Mkey [24]3 years ago

4 0

It does not matter what order it is in when using addition.

You might be interested in

What is the coefficant of x^3 y^2 in the expansion of (2x+y)^5

kondaur [170]

Answer:

just here for points

Step-by-step explanation:

5 0

3 years ago

Mrs. Stevens is wanting to buy new border for her math bulletin board in the hallway l. The length of the board is 6.9 meters. T

kiruha [24]

Answer:

The quantity of board which Mr. Stevens need to buy is 22.4 meters

Step-by-step explanation:

Given as :

The length of board = 6.9 meters

The width of board = 4.3 meters

Let The measure of new board = x meter

Now,

The measure of new board = The perimeter of board

∵ The board is of rectangle figure

As, The perimeter of rectangular board = 2 × Length + 2 × width

So, The measure of new board = 2 × Length + 2 × width

or, x = 2 × 6.9 + 2 × 4.3

or, x = 13.8 + 8.6

or, x = 22.4 meters

So, The measure of new board = x = 22.4 meters

Hence The quantity of board which Mr. Stevens need to buy is 22.4 meters Answer

3 0

3 years ago

PLEASE SOLVE AND CHECK. SHOW COMPLETE SOLUTION

Alex17521 [72]

Solution:

$\sqrt{4x + 13} = x + 2$

First square both sides.

$= > ( \sqrt{4x + 13} ) ^{2} = (x + 2) ^{2}$

Now, square root and square gets cancel out in the LHS. And in the RHS, apply the identity: (a + b)² = a² + 2ab + b².

$= > 4x + 13 = {(x)}^{2} + 2 \times x \times 2 + (2) ^{2} \\ = > 4x + 13 = {x}^{2} + 4x + 4$

Now, transpose 4x and 4 to LHS.

$= > 4x - 4x + 13 - 4 = {x}^{2} \\$

Now, do the addition and subtraction.

$= > {x}^{2} = 9 \\ = > x = \sqrt{9} \\ = > x = ±3$

Answer:

x = ± 3

Hope you could understand.

If you have any query, feel free to ask.

3 0

2 years ago

Let w represent the sum of vectors u and v. Find the magnitude of w and the angle between w and u given the

tino4ka555 [31]

The angle between w and u is approximately

5 0

2 years ago

Please help asap ill give 5 stars if right and I really need help

Murljashka [212]

Answer:

The scale factor is 3

Step-by-step explanation:

The width of A is 1, the width of B is 3

the length of A is 3, the length of B is 9 so the scale factor from A to B is 3

5 0

3 years ago

Read 2 more answers