If x∆y = 3x - y², then
5∆1 = 3×5 - 1² = 15 - 1 = 14
and
14∆6 = 3×14 - 6² = 42 - 36 = 6
So (5∆1)∆6 = 6.
I am pretty sure that it is a concave polygon.
Answer:
Option D
Step-by-step explanation:
Rate of change of a linear function between two points
and
is given by,
Rate of change 'm' = 
From the given table,
Rate of change of the function between (-2, 6) and (-4, 9),
Rate of change 'm' = 
m = 
Initial value = y-intercept
Let the equation of the line passing through a point (h, k) is,
y - k = m(x - h)
If a point (-2, 6) is lying on the graph of the function,
y - 6 = 
y = 
y = 
Y-intercept of the function = 3
Therefore, initial value of the function = 3
Option D is the answer.
Answer:
- 96
- 6.9
- 25%
- 8%
- 79
- 33.8
Step-by-step explanation:
Here is the complete question: Find each number. Round to the nearest tenth if necessary.
- 80% of 120.
- 115% of 6
- What percent of 128 is 32?
- 3 is what percent of 36?
- 23.7 is 30% of what number?
- 71/2% of what is 12?
1) 80% of 120
= 
= 96
∴ 80% of 120= 96
2) 
=
∴
= 6.9
3) What percent of 128 is 32?
= 
= 
4) 3 is what percent of 36?
= 
= 
5) 23.7 is 30% of what number?
Let the number be "x".
⇒ 
Cross multiplying
⇒ 
∴ x= 79.
6) 71/2% of what is 12?
Lets assume the required number be "x".
⇒ 
cross multiplying both side.
⇒x= 33.8
∴ 71/2% of 33.8 is 12