Answer:
41.1764...%
Step-by-step explanation:
60% on 50 questions is 30/50 correct since 30÷50=.6=60%
Between 30 and 50(inclusive) there are 21 numbers.(30,31,32...49,50).
There are 51 possibilities of scores,1-50/50 or 0/50
21/51=0.411764...
ANSWER: A & B
FOR COORDINATES (2,2)
A) 2-2=-0.25(2-2)
0=0
B) 2-3=-0.25(2+2)
-1=-1
FOR COORDINATES (-2,3)
A) 3-2=-0.25(-2-2)
1=1
B) 3-3=-0.25(-2+2)
0=0
WHY ITS NOT C and D
COORDINATES (2,2)
C) 2+3=-0.25(2-2)
5=0 ZERO DOES NOT EQUAL 5
D) 2-3=-0.25(2-2)
-1=0 ZERO DOES NOT EQUAL -1
COORDINATES (-2,3)
C) 3+3=-0.25(-2-2)
6=1 SIX DOES NOT EQUAL 1
D) 3-3=-0.25(-2-2)
0=1 ZERO DOES NOT EQUAL 1
