Mrs. Brown has 11 more boys than girls in her class and has a total of 28 students. Which of the following systems of equations could be used to solve this problem? a) G = B + 11 and B + G = 28
b) B = G + 11 and B + G = 28
c) B = G – 11 and B + G = 28
d) B + 11 = G and B + G = 28

b

Step-by-step explanation:

i just took the test:))

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.

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175