Question

please tell me who are intelligent in math please answer this
find the cost of fencing three sides of a square garden having a side 95m at the rate of ₹ 8per meter​

Answer 1

QUESTION:-

find the cost of fencing three sides of a square garden having a side 95m at the rate of ₹ 8 per meter​

GIVEN

GIVEN:-

SIDE OF SQUARE-95 METRE

COST OF FENCING- ₹ 8 per meter

EXPLANATION:-

SINCE THE FENCING IS DONE IN SIDES OF THE GARDEN SO WE CAN CONCLUDE THAT WE HAVE TO FIND GARDEN'S PERIMETRE(WHICH IS SQUARE ).

PERIMETER OF SQUARE- 4 x SIDE

SIDE=95

PERMETRE-4 x 95

PERMETER= 380 METERS

NOW,TOTAL COST OF FENCING :-

95 x 8 =3040

SO TOTAL COST FENCING ==>₹ 3040

Answer 2

QUESTION:-

Find the value of k if (x-1) is a factor of 4x³+ 3x-² - 4x+k​ ?

GIVEN:-

(x-1) IS FACTOR OF 4x³+ 3x-² - 4x+k​

EXPLANATION:-

LET P(x)=4x³+ 3x-² - 4x+k​

factor=x-1  so x-1=0

x=1

BY REMAINDER THEOREM

p(1)= 0      (as x-1 is factor of p(x)

p(1)=4(1)³+ 3(1)-² - 4(1)+k​

p(1)=4+3-4+k

p(1)=3+k

PUTTING P(1)=0

0=3+K

-3=K

K=-3

SO THE VALUE OF OF K IS -3