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:
im sorry im not sure if its corrrect but its the first one believe which is y=3/5x
Step-by-step explanation:
dont come for me if im wrong
Answer:
The second one, with the 0-5 having 7 students.
Step-by-step explanation:
Add up the number of students who fell into each category (0-5, 6-11, etc), then plot them as shown.
Answer:
speed = 796142.197 km/hr
Step-by-step explanation:
solution
we consider here orbit around galactic center is circular so
circumference formula will be here
circumference C = 2πr ........1
here we know r = 27000
so
circumference C = 2 π × 27000
C = 169560 light year
so
we travel 169560 light year in 230000000 years
so distance will be
distance =
distance = 0.00073721 light year/year
and we know 1 year = 8760 hours
so 1 light year = 9.46027 × km
so
sped of moving is
speed = 0.00073721 × 9.46027 × km/hr
speed = 796142.197 km/hr
Answer:
48 plastic bandages
Step-by-step explanation:
3/9 = 16/x Set up proportion
3x = 144 Cross multiply
x = 48. Solve for x