Special cases of the sum and difference formulas for sine and cosine yields what is known as the double‐angle identities and the half‐angle identities.
We are given two relations
(a)
Relation (R)
![R=[((k-8.3+2.4k),-5),(-\frac{3}{4}k,4)]](https://tex.z-dn.net/?f=R%3D%5B%28%28k-8.3%2B2.4k%29%2C-5%29%2C%28-%5Cfrac%7B3%7D%7B4%7Dk%2C4%29%5D)
We know that
any relation can not be function when their inputs are same
so, we can set both x-values equal
and then we can solve for k







............Answer
(b)
S = {(2−|k+1| , 4), (−6, 7)}
We know that
any relation can not be function when their inputs are same
so, we can set both x-values equal
and then we can solve for k




Since, this is absolute function
so, we can break it into two parts


we get




so,
...............Answer
Answer:
Number of Adults Ticket=393
Number Of Students Tickets=792
Step-by-step explanation:
Let 'x' be the Adult's tickets
Let 'y' be the Student's tickets
x+y=1185 (total sold tickets)
5x+y=2757(total cost of tickets)
-(5x+y=2757)x+y=1185
(-5x-y)- x+y=1185-2757
=-4x+0 = (-1572)
=-4x=(-1572)
x= (-1572)÷-4
=393
=x+y=1185
=393+y=1185
=y=792
So Number of Adults Ticket=393
Number Of Students Tickets=792
Hope it Help
Answer:
see explanation
Step-by-step explanation:
Calculate the distance (d) using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (6, 5) and (x₂, y₂ ) = (- 3, 1)
d = 
= 
= 
=
≈ 9.85 ( to 2 dec. places )
Answer:
-4x - 20x
Step-by-step explanation:
Multiply 2 by -10