Answer:
D(2,2)
Step-by-step explanation:
The diagonals of a parallelogram gram bisects each other.
Therefore E is the midpoint of AD.
Let the coordinates of D be (a,b).
By the midpoint rule:
This implies that:
This implies that:
F ( x ) = 3 sim x + 3 cos x
f ` ( x ) = 3 cos x - 3 sin x
f `` ( x ) = - 3 sin x - 3 cos x = - 3 ( sin x + cos x )
The inflection points:
- 3 ( sin x + cos x ) = 0
sin x + cos x = 0
sin x = - cos x / : cos x
tan x = - 1
x 1 = 3π / 4
x 2 = 7π / 4
The function is concave up when f``(x) > 0
- 3( sin x+ cos x ) > 0
sin x + cos x < 0
tan x < - 1
f is concave up for:
x ∈ ( π/2, 3π/4 ) ∪ ( 3π/2, 7π/4)
f is concave down for:
x ∈ ( 0, π/2 ) ∪ ( 3π / 4, 3π/2 ) ∪ ( 7π / 4, 2 π ).
Answer:
53.9 Kilograms of sugar in 7 hours
Step-by-step explanation:
7*7.7=53.9
Answer:
C. None of the above
Step-by-step explanation:
Answer:
x=5
Step-by-step explanation:
4(3x+2)=68
Divide each side by 4
4/4(3x+2)=68/4
3x+2 =17
Subtract 2 from each side
3x+2-2 = 17-2
3x = 15
Divide each side by 3
3x/3 = 15/3
x =5
