15/40 Marks 41%
a) Find, in terms of a and c, the vector MN.
Note: Ignore arrows above vectors eg write MN, not MN
ABCD is a parallelogram.
Mis the midpoint of CB.
N is the midpoint of AB.
DA = a
A
N
DC = C
+
B
b) Show that CA is parallel to MN.
1
+
a
Ем
D
С
C

answer: -1

step-by-step explanation:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

$320 to $405

step by step explanation:

in one day he earns between $64 and $81

therefore if he works for 5 days, he will earn between 64 x 5 to 81 x 5

= $320 to $405

32.5 is the answer i got thats the answer