Answer:
900°
Step-by-step explanation:
The sum of interior angles of a polygon with
sides is given by:
Sum = 
Here, <u>the polygon has 7 sides</u>, so
. Plugging this into the formula gives us:
Sum = 
So the answer is the first choice, 900°.
Answer:
I think the answer is D
Step-by-step explanation:
Answer:
Option (c) [–3, –1]
Step-by-step explanation:
In any interval,
If f(a) ≥ f(x) for all x in the interval, then it is Local maxima (hill) and,
If f(a) ≤ f(x) for all x in the interval, then it is Local minima (valley).
(as shown in the diagram)
Now, as clearly seen in the 2nd image, the local minimum is at point (-2,-6). And the interval which contains the local minimum is [-3,-1]. Hence, option (c) is correct.
Answer:
C = 17/7 or 2 3/7
D = -4/7
Step-by-step explanation:
3C+4D=5
2C+5D=2
2C = 2 - 5D
C = 1 - 2.5D
3(1 - 2.5D) + 4D = 5
3 - 7.5D + 4D = 5
-3.5D = 2
D = -4/7
C = 1 - 2.5(-4/7)
C = 1 + 10/7 = 17/7
(x-4)(x-4)
5(x^2-8x+16)=60
5x^2-40x+80=60
5x^2-40x+20=0
5(x^2-8x+4)
something like this