9) You want to open a checking account at your local bank, which offers two options. A standard checking account charges $6 each month plus $.25 for each check written. A select checking
account charges $4.50 each month plus $.50 for each check written. Write a system of equations
can be used to determine the number x of checks that must be written in a month in order for the
total charges y for the two checking accounts to be the same and give the total cost.

yess

step-by-step explanation:

idk whyy this is happening, i cant even read my notification bc i keep getting errors

~coco

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.

14.29%

step-by-step explanation:

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.