Question

¡¡¡¡me ayudan porfavor !!!!
de estas 3 actividades

Answer 1

mira las respuestas he aqui
1
1b. 15
1c. 50
1d.6
2
2a.12
2b.3
2c.49
2d.28
2e.60
espero haberte ayudado saludos

Answer 2

1....x = 6

a. 3x = 3(6) = 18

b. 5x/2 = 5(6/2) = 5(3) = 15

c. 7x + 8 = 7(6) + 8 = 42 + 8 = 50

d. (3x + 12)/2=

(3*6 + 12)/2 = (18+12)/2 = 30/5 = 6

2...x = 4, y = 3, z = 5

a. x + y + z = 4 + 3 + 5 = 12

b. 2x + 3y - z =

2(4) + 3(3) - 5 = 8 + 9 -5 = 17 - 5 = 12

c. 5x - 2y + 7z =

5(4) - 2(3) + 7(5) = 20 - 6 + 35 = 49

d. 3x + 2(y+z) =

3(4) + 2(3 + 5) = 12 + 2(8) = 12+16 = 28

e. 5xyz = 5(4*3*5) = 5(60) = 300

3... x = 8, y = 4, z = 2

a. 4x² + 2y + 3z³ =

4(8)² + 2(4) + 3(2)³ = 4(64 )+ 8 + 3(8) =

256 + 8 + 24 = 288

b.√2x + 5y + 5 z² = √2(8) + 5(4) + 5(2)²=

√ 16 + 20 + 5(4) = √16 + 20 + 20 =√56

c. √5x + 2y - z = √5(8) + 2(4) - 2 =

√40 + 8 - 2 = √40 + 6 = 2√10 + 6

d. √16 y/2 + 7x - 2z =

√16(4) /2 + 7(8) + 2(2) = √64/2 + 56 - 4 =

√64/2 + 56 - 4 = 8/2 + 56 - 4 =

4 + 56 - 4 = 56

e.√2xyz /3 = √2(8*4*2) /3 =

√2(64) /3 = √128 /3 = 8√2 /3