Answer:
x = -1, 3, and 7
Step-by-step explanation:
Using grouping:
f(x) = x³ − 9x² + 11x + 21
f(x) = x³ − 9x² + 18x − 7x + 21
f(x) = x (x² − 9x + 18) − 7 (x − 3)
f(x) = x (x − 6) (x − 3) − 7 (x − 3)
f(x) = (x² − 6x) (x − 3) − 7 (x − 3)
f(x) = (x² − 6x − 7) (x − 3)
f(x) = (x + 1) (x − 7) (x − 3)
To use long division, see the picture.
The zeros are x = -1, 3, and 7.
Answer:
There the same shade of blue
Step-by-step explanation:
The solution for the principle is just smaller than the teachers
Answer:
40
Step-by-step explanation:
5*4*2
Find the mean, median, mode and range of [96, 103, 98, 101, 98, 100, 100, 97, 98, 100
Dafna11 [192]
Answer:
median-99
mean-99.1
mode-100
range-7
Step-by-step explanation:
Answer:
Step-by-step explanation:
3/4r + 1/2(r+6)=23
3/4r + 1/2r +3=23
5/4r =20
Multiplying by 45 yields r=16
DaMarcus's speed is r=16 miles per hour & Fabian's speed is r+6=22 miles per hour.