Question

If (x-3) is a factor of p(x) = 35x4-25x3 + 40x2 - 30x +10 find. Reminder using long division method​

Answer 1

Answer:

2440

Step-by-step explanation:

if x-3 is a factor of p(x) then, x-3=0 and x=3

p(x) = 35x⁴ - 25x³ + 40x² - 30x +10

p(3) = 35(3)⁴ - 25(3)³ + 40(3)² - 30(3) + 10

= 35(81) - 25(27) + 40(9) - 90 + 10

= 2835 - 675 + 360 - 90 + 10

= 2440

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Answer 2

Answer:

r=7 cm

l (slant height)= h (height of cylinder)=4 cm

T.S.A of the figure= C.S.A of Cone+C.S.A of cylinder +C.S.A of hemisphere.

CSA of cone: πrl=(3.14)×(7cm)×(4cm)=87.92 cm

2

CSA of cylinder: 2πrh=(2)×(3.14)×(7cm)×(4cm)=175.84 cm

2

CSA of hemisphere: 2πr

2

=(2)×(3.14)×(7cm)

2

=307.72 cm

2

Adding all: TSA of figure= 571.48 cm

2

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