Give the coordinates for points D and E without using any new variables. Then find the midpoint of DE. The image is of a quadrilateral DEBC drawn on a two dimensional graph. The co-ordinate of C is (-a,0) and of B is (0,-b). Vertices E and D are on x and y axis respectively. A. D(0, b), E(a, 0); midpoint of DE=(b2,a2) B. D(0, a), E(b, 0); midpoint of DE=(b2,a2) C. D(0, b), E(a, 0); midpoint of DE=(a2,b2) D. D(0, a), E(b, 0); midpoint of DE=(a2,b2)

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

the correct answer is $7.38

step-by-step explanation:

he earned 78.75 in interest.

step-by-step explanation: