Question 11 of 33 how did the invention of hydraulic mining allow for larger mining operations? a. air blown at high pressure could remove unwanted materials from steel. b. water released at high pressure could move large rocks out of the way. c. new tools were better able to cut through shallow grass and rocks in the soil. d. wind power could be used to pump water and produce electricity.

The invention of hydraulic mining allow for larger mining operations because water released at high pressure could move large rocks out of the way.

Option B

Explanation:

Hydraulic mining is the process of using high pressure water jets at rocks to move them, break them and eventually remove them. Water is one among the most important components in this mining process.

This was mainly used so that miners can go deeper when they are mining and can eventually take on more deeper mining missions, especially due to the water which is released at high speed and pressure could move large rocks out of the way.

answer

explanation

the given equation is

we can rewrite this as:

let

then the equation becomes:

the factors of 8 that sum up to -9 are {-1,-8}

we split the middle term with these factors to obtain,

we factor by grouping to obtain:

apply the zero product property to get:

but

states

explanation:

as the old saying goes, all politics are local. state and federal governments affect our daily lives in numerous ways. yet, in our federal system, there is supposed to be a balance between federal and state power. as james madison envisioned it in federalist no. 51, “the power surrendered by the people” would be “divided between two distinct governments,” creating a balance of power that would enable the “different governments [to] control each other.”