So you have 9x-10 and x= -5
9(-5)-10
-45-10= -55
Your answer would be -55
Answers:
a)
b)
Step-by-step explanation:
a) The area of the sector of a circle is given by:
(1)
and
(2)
Where:
is the radius
(3) is the length of arc
is the angle in radians
In this case we have to find the value of . So, let's begin substituting the known values in (1):
(4)
Isolating :
(5)
Substituting (5) in (3):
(6)
Solving:
(7) At this point we have , but we need to find the value of in order to have the actual value of the length of arc.
Making (1)=(2):
(8)
Isolating :
(9)
Substituting (7) and (5) in (9):
(10)
Finding :
(10) Now that we have the value of the radius, we can substitute it in (7) and finally find the value of the
(11)
(12)
b) In this second case we have:
is the length of arc
is the angle in radians
the radius
We have to find the area of the sector and we will use equations (1) and (2):
(13)
(14)
(15)
(16)
Knowing :
This is the area of the sector of the circumference.
Answer:
5
Step-by-step explanation:
If you use the quadratic formula you get -8 and 5 the answer is either of these.
Answer:
C. 726
Step-by-step explanation:
9196-1936=7260 and take away the 0 so your answer will be 726
Answer:
what is the question?????