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3 years ago

Why is there no commutative property for subtraction or division? Show examples.

Mathematics

1 answer:

Andrei [34K]3 years ago

6 0

If you do 17 - 15 the answer will be positive but do the reverse and u get a negitive same for division

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Complete the description of how to model -4x + 6 = 23

charle [14.2K]

Well I will put an example but the easiest way

Expanding-

When u ex and

7 0

3 years ago

Which of the following is the solution to | x | +5< 1?

marissa [1.9K]

C. No Solution

Explanation

The above equation has no solution as the value of x is always mod x which means the value is always positive. Hence to make the equation true, we need value of mod x less than -4 which is not possible. Hence this equation as no solution.

$|x| + 5< 1\\|x| + 5 -1 < 0\\|x| +4 < 0\\|x| < -4$

Since, |x| can never be < -4 because value of |x| is always greater than or equal to, Hence this equation has no solution.

7 0

3 years ago

Help??? Its a two step inequality problem. I dunno what X equals too.

Verizon [17]

Answer:

$x \geq -1$

Step-by-step explanation:

$-4x + 2 \geq -6x$

Add $6x$ to both sides:

$-4x + 2 + 6x \geq -6x + 6x$

$2x + 2 \geq 0$

Subtract 2 from both sides:

$2x + 2 - 2 \geq 0 - 2$

$2x \geq -2$

Divide both side by 2:

$\frac{2x}{2} \geq \frac{-2}{2}$

$x \geq -1$

5 0

3 years ago

Read 2 more answers

Please help no link as answers

Katarina [22]

Step-by-step explanation:

You can imagine this figure as a rectangle and cube

If you want volume of this irregular figure than you have to do it like this:

V(figure)= V(rectangle)+ V(cube)

V(figure)= a*b*c+ a³

V(figure)= 4*3*(I don't see dimension on the left)+ 3³

V(figure)=12*(I don't see dimension on the left)+ 27

And only you have to to do is to set this dimension which I can't see.

6 0

2 years ago

What is 5/20 as in a percent

Law Incorporation [45]

$\sf \dfrac{5 \div 5}{20 \div 5} = \dfrac{1}{4} \\ \\ 1 \div 4 \\ \\ 0.25 \\ \\ 0.25 * 100 = 25 \%$

5 0

3 years ago

Read 2 more answers