Answer:
Step-by-step explanation:
A. 2x+3y+z
X = -2
Y= -3
Z= 5
2(-2)+3(-3)+5
-4-9+5
=8
B. X-Y
-2–3
-2+3
=1
C. 2(x+y/z)
2(-2-3/5)
2(-1)
=-2
D. 3x^2-2x+1
3(-2)^2-2(-2)+1
3(4)+4+1
=17
E.3y(x+x^2-y)
3(-3)(-2+-2^2-(-3))
-9(1)
=-9
F.-z^2(1-2x)/y-x
5^2(1-2(-2)/-3–2
25(5/5)
25(1)
=25
Answer: 44
EC is basically EF times 2
Answer:
The 2 equations are E = 2K and K = E-3
Step-by-step explanation:
Let the height of Eric be E
Let the height of Kevin be K
Eric is twice as tall as his little brother Kevin
E = 2K
Kevin is also three feet shorter than Eric
K = E-3
The 2 equations are E = 2K and K = E-3
Answer:
3. 4+2+x and (4+2)+x
4. 7y-10
Step-by-step explanation:
