+2348063286010 [email protected]

## 2017 NECO GCE MATHEMATICS OBJ: CONFIRM

1-10: EAACBAECBE
11-20: CDABECBCCA
21-30: AEDCBACEDE
41-50: BCEBDCEABE
51-60: DBAECBECBE

1A
(6Y²)³ / 2 Y^6
= 6³Y^6 / 24Y^6
=6³Y^6/24Y^6
= 216/24
=9

1B
LOG10(2M² 5M-2)=1
2M² 5M-2=10
2M² 5M-2-10=0
2M² 5M-12=0
USING M=-B -√B²-4AC/2A
A=2
B=5
C=-12
M=-5 -√5²-42(-12)/2*2
M=-5 -√2 96/4
M=-5 -√98/4
M=-5 -9.9/4
M=-5 9.9/4 OR M=-5-9.9/4
M=1.225 OR -3.725

(2A)
W~ 3√D
LET OUR CONSTANT BE K
W= K×3√D
10= K × 3√27
10/3= 3K/3
K= 10 /3
W WHEN D= 64
W= 10/3 × 3√64
W= 10/3 × 4
W= 40/3
W= 13.3

## 2017 NECO GCE MATHEMATICS OBJ: CONFIRM

(2B)
X/2 Y/6 = 2/3
L.C.M = 6
RX Y = 4 —–(1)
X/3 – Y/2 = 5/3
L.C.M = 6
2X – 3Y = 10 —–(2)
FROM EQ (1)
3X Y = 4
Y= 4 – 3X ——(3)
SUB FOR Y IN EQ (2)
2X – 3(4-3X) = 10
2X – 12 9X = 10
11X = 22
X=2
SUB FOR X IN EQ (3)
Y = 4-3(1)
Y = 4-3-
Y = 1

(4A)
V= 2/3ΠR
1527.4= 2/3 ×22/7 ×R
1527.4= 44R/21
32075.4= 44R
R= 32075.4/44
R= 728.98
~~~= 729CM

(4B)
3^3Y 1 = 81^-5
3^3Y 1 = 3^-4Y
3Y 1= -4Y
3Y 4Y= -1
7Y = -1
7Y/7= -1/7
Y= -1/7

(5A)
RED=4
GREEN = 6
BLACK= 10
TOTAL=20
(I) P(RED) = 4/20 = 1/5
(II) P(GREEN)= 6/20 = 3/10
(III) P (BLACK)= 10/20= 1/2

(5B)
( X-1)(X-8) 12=0
X²-8X-X 8 12=0
X²-9X 20=0
X= -B √B²-4AI
X= 9 /-√-9²-4×1×20÷ 2×1
X=9 /-√81-80÷2
X=9 /-√1÷2
X= 9 1/2 OR 9-1/2
X= 10/2 OR 8/2
X= 5 OR 4

(8A)
4A^2 B3AB^-2/4A^3(3AB)
=12 A^4 B^1/12A^4 B
=6^-1/B^1
=B^-1-1 =B^2
6^-2 OR 1/B^2

8B)
LET THE POCKET MONEY BE X
2X/5 =STATIONS
X/4=SCHOOL LEVIES
X/6= FOOD
X-(24X/5 X/4 X/6)=55
X-(24X 15X 10X)/60 =55
X-49X/60 =55
60X-60-49X/60 = 5560
60X-49X=#3,300
11X/11=3300/11
X=#300
THE POCKET MONEY =#300

8C)
16^X-4 = 64^X 4/8^X
24^X-16 = 2^6X 24/2^3X
2^4X-16 = 2^6X 24-3X
2^4X-16 = 2^3X 24
4X-16 = 3X 24
4X – 3X = 16 24
X = 40

10)
1/27^(X-2)=9^(2-X)
3^3(X-2)-1=3^2(2-X)
3-1(X-2)=4-2X
2X-4=4-2X
2X 2X=4 4
4X=8
X=
8/4
X=2

10B
5X Y/X 5Y= 3/1
5X Y= 3(X 5Y)
5X Y=3X 15Y
5X-3X=15Y-Y
2X=14Y
X/Y= 14/2 =7, Y/X= 1/7
X2-Y2/4XY

## 2017 NECO GCE MATHEMATICS OBJ: CONFIRM

DIVIDE ALL THROUGH BY MY
(X²- Y²/) ÷(4XY/XY)
XY- XY
(X/Y- Y/X) ÷4
(7- 1/7)÷4 ~~~49-1/7×1/4
= 4

11A)
A=(1 7,3 2) AND B=(2 5,4 6)
I)A^-1=1/DET(2 -7,-3 1)
DET= 2 -21=-19
A^-1=1/-19(2 -7,-3 1)
-1/19(2 -7,-3 1)
II)B^T =(2 -4,5 6)
III)AB =(1 7,3 2) (2 5,4 6)
(2 -28,6-8, 5 46,15 12)
(-26,-2, 51,27,)

11B)
7X^2 12X 5 = 0
7X^2/7 12X/7 = -5/7
X^2 12X/7 = -5/7
X^2 12X/7 (6/7)^2 – -5/7 (6/7)2
(X 6/7)^2= -5/7 36/49
(X 6/7)^2 = -35 36/49
(X 6/7)^2 = 1/49
(X 6/7) = AND – √1/19
X 6/7 = AND – 1/7
X = -6/7 AND – 1/7
X = -6 1/7 OR -6-1/7
X= -5/7 OR -7/7
X = -5/7 OR -1

ALWAYS VISIT US FOR ANY EXAM EXPO BE IT JAMB WAEC, NECO, NABTEB, WAEC GCE AND NECO GCE, SAVE AND BOOKMARK US WITH THE NAME IN THE BOX BELOW

### Related Post

Italy Visa. Frequent Searched Application Form Por... Italy Visa. Frequent Searched Application Form Portal 2018/10 New policy. Italy Visa. Frequent Searched Application Form Portal 2018/10 New policy. ...
WAEC 2017 TO RELEASE WITHHELD RESULT IN NOVEMBER WAEC 2017 TO RELEASE WITHHELD RESULT IN NOVEMBER DETAILS The West African Examination Council has finally come out to inform everyone about the withhe...
Nigerian Investment Promotion Commission Recruitme... Nigerian Investment Promotion Commission Recruitment Login Portal 2018. Nigerian Investment Promotion Commission Recruitment Login Portal 2018. NIPC...
ARMY SCREENING DATE – ARMY SCREENING VENUE &... ARMY SCREENING DATE - ARMY SCREENING VENUE & TIME - recruitment.army.mil.ng ARMY SCREENING DATE - ARMY SCREENING VENUE & TIME - recruitment.a...
Top 5 Upcoming Magnificent Smartphones in -2018 -F... Top 5 Upcoming Magnificent Smartphones in -2018 -Future When will Apple release its follow-up to the iPhone 8 and X? We round up all the early rumo...