Answer:
C(1,3) and D(1,4).
Step-by-step explanation:
The given quadrilateral ABCD has vertices at A (3,7) and B (3,6). The diagonals of this quadrilateral ABCD intersect at E (2,5).
Recall that, the diagonals of a parallelogram bisects each other.
This means that; E(2,5) is the midpoint of each diagonal.
Let C and D have coordinates C(m,n) and D(s,t)
Using the midpoint rule:

The midpoint of AC is 
This implies that;




The midpoint of BD is 
This implies that;




Therefore the coordinates of C are (1,3) and D(1,4).
10.05 = 10 5/100 = 10 1/20
10.005 = 10 5/1000 = 10 1/200
therefore, 10.05 is greater then 10.005
Answer:
Step-by-step explanation:
First you will have to put the formula of the rectangular rectangle L x W
Making you the answer you will do this
120 x 53 and then you divide the answer with 360 and then multiply 6 x2 and then add it and you get the answer
A quadratic function is given by y = ax^2 + bx + c
c(2) = a(2)^2 + 2b + c = 45
4a + 2b + c = 45 . . . (1)
c(4) = a(4)^2 + 4b + c = 143
16a + 4b + c = 143 . . . (2)
c(10) = a(10)^2 + 10b + c = 869
100a + 10b + c = 869 . . . (3)
Solving (1), (2) and (3) gives a = 9, b = -5, c = 19
Therefore, c(x) = 9x^2 - 5x + 19
c(7) = 9(7)^2 - 5(7) + 19 = 9(49) - 35 + 19 = 441 - 16 = 425
Therefore, it costs $425 to produce 7 calculators.