Question

I'll brainliest the answer ​

Answer 1

Answer: Q.4- 5/11

Q.5-  k=-2

Step-by-step explanation:

Q.4  Let x = 0.45 bar ----equation (i)

As there are 2{ 4 and 5} numbers under the bar, multiply by 100 on both sides,

100x = 45.45 bar

Then, subtract eq(i);

100x - x = 45.45 bar - 0.45 bar

=> 99x = 45 [ bar cancels out ]

=> x = 45/99

=> x = 15/33

=> x = 5/11

Hence, 0.45 bar in p/q form is 5/11

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Q.5 p(x)= x³+x+k

f(x)=x-1 ; Therefore, x=1

p(1) = 1+1+k => -2=k

HOPE IT HELPS YOU :)