Question

1. If r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: s + 7 *

2. If r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: 5r - 4 *

3. if r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: t - s *

4 .If r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: u + r *

5. If r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: 11t - 7 *

6. If r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: 6 + 3u *

7. If r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: 4r - 10s *

8. If r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: (r with an expnent of 2 +8)

9. If r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: *

30 over r

10.If r = 5, s = 2, t = 7, and u = 1 then evaluate the expression: *2t with an exponent of 2-18

Answer 1

1. s + 7 = 9

2. 5r - 4 = 21

3. t - s = 5

4. u + r = 6

5. 11t - 7 = 70

6. 6 + 3u = 9

7. 4r - 10s = 0

8. r with an expnent of 2 +8 =
`r^(2) + 8 = 33`

9. 30 over r =
`(30)/(5)` =6

10. 2t with an exponent of 2-18 =
`(2t)^(2) - 18 = 178`

Explanation:

1. If r = 5, s = 2, t = 7, and u = 1 then,

s + 7 = 2 + 7 = 9

2. If r = 5, s = 2, t = 7, and u = 1 then,

5r - 4 = 5(5) - 4 = 25 - 4 = 21

3. if r = 5, s = 2, t = 7, and u = 1 then,

t - s = 7 - 2 = 5

4 .If r = 5, s = 2, t = 7, and u = 1 then,

u + r = 1 + 5 = 6

5. If r = 5, s = 2, t = 7, and u = 1 then,

11t - 7 = 11(7) - 7 = 77 - 7 = 70

6. If r = 5, s = 2, t = 7, and u = 1 then,

6 + 3u = 6 + 3(1) = 6 + 3 = 9

7. If r = 5, s = 2, t = 7, and u = 1 then,

4r - 10s = 4(5) - 10(2) = 20 - 20 = 0

8. If r = 5, s = 2, t = 7, and u = 1 then,

r with an exponent of 2 +8 =
`r^(2) + 8 = 5^(2) + 8 = 25 + 8 = 33`

9. If r = 5, s = 2, t = 7, and u = 1 then,

30 over r =
`(30)/(r) = (30)/(5) = 6`

10.If r = 5, s = 2, t = 7, and u = 1 then,

2t with an exponent of 2-18 =
`(2t)^(2) - 18 = (2.7)^(2) - 18 = (14)^(2) - 18 = 196 - 18 = 178`