Answer:
question 1 is -18
question 2 is -2
Step-by-step explanation:
question 1 work: -30 + 12= -18
question 2 work: -5 + 5 + -2= -2
question 1 you have to add your numbers to get the elevation.
question 2 you have to add all of those numbers and you should get -2.
hope this helps
Btw can I have brainliest please :)
Answer:
Easy, all you have to do is add em all together 80+70=150 and 2+6=8 so 150+8=158
Step-by-step explanation:
Answer:
x = -3
Step-by-step explanation:
magic
Answer:
27 cubic millimeters
Step-by-step explanation:
Remember that a cube's surface area is 
where 
is any side length of the cube.
Hence, by solving 
, we find that the side length of a cube is 3 millimeters.
This means that the volume of the cube is 
Answer:
3) x^2-yz/z^2
x = -3, y = 5 and z = -2 plug in these values
-3^2 -5(-2) /-2^2
= -1/4
decimal form: -0.25
4) x^2+y^2+z^2/xyz
x = -3, y = 5 and z = -2 plug in these values
-3^2+5^2+-2^2/-3*5*-2
= 2/5
decimal form: 0.4
5) x+y/z + y+z/x
x = -3, y = 5 and z = -2 plug in these values
(-3+5/-2)+(5+(-2)/-3)
= -2
6) 2x+y-z/x-3y+z
x = -3, y = 5 and z = -2 plug in these values
2(-3)+5-(-2)/-3-3(5)+(-2)
= -1/20
decimal form: -0.05
