4. Find the greatest number which divides 171 and 251 leaving the remainders 3 and 6 respectively.​

7

The greatest number, which divides 171, and 251 leaving remainders 3 and 6 respectively is. HCF of 168 and 245 is 7. The greatest number which divides 171 and 251 leaving remainders 3 and 6 respectively is 7.

Step-by-step explanation:

We have to find least number which divides 171 and 251 leaving remainder 3 and 6

so if we subtract 3 and 6 from 171 and 251 respectively resultant nos. will be divided by that no.

so, 171-3 = 168 and 251-6 = 245

so Required no will be HCF of 168 and 245

= HCF (168,245) = 7

The answer is 7.

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.