Answer:
Step-by-step explanation:
x ² - 36 = 5x
x²-5x-36=0
a=1 b= -5 c=-36
calculate the discriminent b²-4ac ......continu
Answer:
D. x+2x+x+10
Step-by-step explanation:
There you go.
let me know if it's unclear
Answer:
34
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
Here [ a, b ] = [ 1, 6 ]
f(b) = f(6) = 6³ - 9(6) = 216 - 54 = 162
f(a) = f(1) = 1³ - 9(1) = 1 - 9 = - 8, thus
average rate of change = 
= 
= 34
Answer:
n + (2n + 5) = 50
Step-by-step explanation:
n = Nina’s age
2n = twice Nina’s age
5= Ryan is 5 years older than twice Nina’s age
50 = both their ages combined.
So,
n + (2n + 5) = 50
