1,542.
Find the coordinates of point B
A.
(0,11/2)
B.
(O,2)
C.
(2,0)
D.
(11/2, 2)
E.
(11/2, 0)
Correct answer is E
B occurs at the point y = 0.
When y = 0, we have
4x + 3(0) = 6
4x = 6
x = 112
B = (112,0)
1,543.
The shaded portion shows the outer boundary of the half plane defined by the inequality
A.
4x + 3y ≥ 6
B.
4x + 3y = 6
C.
4x + 3y < 6
D.
3y >6
E.
4x < 6
Correct answer is A
The region is denoted by 4x + 3y ≥ 6
1,544.
Find the perimeter of the region
A.
22cm
B.
33cm
C.
40cm
D.
47cm
E.
66cm
Correct answer is C
P = πr + πr + R = 227 x 7 + 227 x 72 + 7
P = 22 + 11 + 7 = 40cm
1,545.
2nd Area of the smaller circle DYO =
Total Area = 77 + 19.25 = 96.25 = 96.00
Find the area of the enclosed region, PXROY correct to the nearest whole number
A.
96cm2
B.
116cm2
C.
154cm2
D.
192cm2
E.
385cm2
Correct answer is A
Area of the bigger semi circle P x RO =
πr22
= 227
x 492
= 77cm22nd Area of the smaller circle DYO =
227
x 3.522
= 19.25Total Area = 77 + 19.25 = 96.25 = 96.00
WAEC Subjects
Aptitude Tests