Which is equivalent to rootindex 5 startroot 1,215 endroot superscript x? 243x 1,215 superscript one-fifth x 1,215 superscript startfraction 1 over 5 x endfraction 243 superscript startfraction 1 over x endfraction

they will manufacture 8496 cars

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.

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.