A school wants to add a new sports team. The school sent out surveys asking for the students' favorite sport. Thirteen students named hockey. Others named lacrosse or swimming. Use pencil and paper. Explain how to use the circle graph and ratios to find the number of students surveyed. Then find this number.

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.

54.864 meters

step-by-step explanation:

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation: