In the number 170,927, the underlined 7 is worth how many times the other seven? a) ten b) one hundred c) one thousand d) ten thousand

The first seven would be work D) 10,000 times as much as the second 7.

In order to find this, replace all of the other numbers in the number with 0. first we'll start with the first 7.

070,000 or 70,000

And then do the same with the second.

000,007 or 7.

Now we can divide the first number by the second to check for the answer.

70,000/7 = 10,000

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

the answer is ! ?