Question

21а-15 при а=(-1) 7b-2 при b=44k+7 при k=47m-2 при m=104b+21 при b=-27e-4 при е=-6​

Answer 1

21*(-1)-15=-21-15=-36

7*4-2=28-2=26

4*4+7=23

7*10-2=70-2=68

4*(-2)+21=-8+21=13

7*(-6)-4=-42-4=-46

Answer 2

-6

19

23

68

13

-46 мот я просто подставила числа вместо букв

Answer 3

To evaluate the expression 21а-15 when a=(-1), we substitute a with (-1) in the expression:

21*(-1) - 15 = -21 - 15 = -36

To evaluate the expression 7b-2 when b=44k+7, we need to first find the value of b by substituting k into the expression for b, and then substitute b into the expression:

b = 44k + 7 b = 44*(47m-2) + 7 Now, we need to find the value of m by substituting e into the expression for m:

m = 104b + 21 m = 104*(-27e-4) + 21 m = -2.808e - 3.728 Now, we can find the value of b:

b = 44*(47*(-2.808e) - 3.728) + 7 b = -577.872e - 166.432 Finally, we can find the value of 7b - 2:

7b - 2 = 7*(-577.872e - 166.432) - 2 7b - 2 = -4045.104e - 1166.024 - 2 7b - 2 = -4045.104e - 1168.024

Now, if you have the value of e, you can substitute it into the above expression to get the final result. However, the value of e is not provided in the question, so I cannot provide a specific numerical result without that information.