To the nearest tenth of a percent, what percent of the 7th grade students were in favor of wearing school uniforms? A. 19.2%
B. 41.3%
C. 42.9%
D. 57.1%

C

Step-by-step explanation:

48 in favor divided by the total 112 7th graders is .4285, rounded is 42.9%

C. 42.9%

Step-by-step explanation:

They say out of 7th grade so we need the total 7th graders which is 112 and they say in favor so then we take 48 and divide the two 48/112 which gives us a decimal so we then multiply it by 100 to get the percent.  

48/112= 0.429

0.429(100)= 42.9%

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.