Dividing to the nearest tenth 8/6.403

1.2

Step-by-step explanation:

When you divide the 2 numbers in a calculator, you get 1.24941433703 . The tenth place is the number right after the point, to round it by seeing if the number right after that one is less than 5; if so, keep the number the same; if not, make the number larger by 1. 4 is less than 5 so keep .2 as .2

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted

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.