Question

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

Answer 1

Answer:

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 = $\frac{30}{5}$ =6

10. 2t with an exponent of 2-18 = $(2t)^{2} - 18 = 178$

Step-by-step 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 = $\frac{30}{r} = \frac{30}{5} = 6$

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

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