4 (5+6)-15 evaluate the question?

Answer:

x=6

Step-by-step explanation:

-2x-3=-15

add 3 on both sides

-2x=-12

divide -2 on both sides

x=6

Answer:

x= 6

Step-by-step explanation:

11 3/5 - 5 19/20

58/5 - 5 19/20

58/5 - 119/20

113/20

= 5.65

I hope that's help ! If you have question(s) please let me know

Answer:

(x^2+11)(x^2-11)

Step-by-step explanation:

You didn't list the options, but it should be:

(x^2 + 11) (x^2 - 11)

We use this formula: a^2 - b^2 = (a + b) (a - b)

Answer:

The process through which the fertile soil is renewed is called soil fertility.

Step-by-step explanation:

Soil fertility refers to the ability of soil to sustain agricultural plant growth, i.e. to provide plant habitat and result in sustained and consistent yields of high quality.

A fertile soil has the following properties :

• The ability to supply essential plant nutrients and water in sufficient amounts which increase productivity.

• The absence of toxic substances which may inhibit plant growth.

The following properties contribute to soil fertility in most situations:

• Sufficient soil depth for adequate root growth and water retention;

• Good internal drainage, allowing sufficient aeration for optimal root growth .

Hence, The process through which the fertile soil is renewed is called soil fertility.

Soil Fertility is the answer and there really is no explanation to this except it gives life back to soil that was once fertilized.