13) On Tuesday Jill bought five posters. On Wednesday half of all the posters that she
had were destroyed. On Thursday there
were only 14 left. How many did she
have on Monday?

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: 40392

step-by-step explanation:

10098 x 4 = 40392

answer:

1.14285714286

step-by-step explanation:

divide 40 into 35 and you will get your answer

most likely linear (proportionate)

step-by-step explanation:

as time increases heart rate increases