m = 5 and n = 3
let f(x) = 2x³ - mx² + nx - 2 , then
f( - 1 ) = - 2 - m - n - 2 = - 12
f(2 ) = 16 - 4m + 2n - 2 = 0
Tidying up the 2 equations
- m - n = - 8 → (1)
- 4m + 2n = - 14 → ( 2)
multiply equation ( 1) by 2
- 2m - 2n = - 16 → ( 3 )
add ( 2 ) and ( 3 ) term by term
-6m = - 30 ⇒ m = 5 ( substitute m = 5 into (2 )
- 20 + 2n = - 14
2n = 6 ⇒ n = 3
Answer:
745 k/hr
Step-by-step explanation:
mathematically, 1 day = 24 hours
1670 days = 1670 * 24 = 40,080 hours
The speed is thus;
(29,870,000)/40,080 = 745.259
= 745 km/h
Answer:
260.5
Step-by-step explanation:
Answer:
answer is 75
Step-by-step explanation:
6÷8x100=75%
from 58 to 66 its have 6 colums..thats why 6/8
Answer:
odd degree and positive leading coefficient
Step-by-step explanation:
From the graph , we can see that when x goes to infinity , y goes to infinity
As x--> ∞, y--> ∞ (As x increases the value of y increases on the positive side)
we can see that when x goes to -infinity , y goes to -infinity
As x--> -∞, y--> -∞ (As x decreases the value of y decreases on the negative side)
When x--> ∞, y--> ∞ and x--> -∞, y--> -∞
The leading coefficient is positive and largest exponent is odd
So the graph has odd degree and positive leading coefficient
