Answer:
b
Step-by-step explanation:
Answer is B
9/4 <x <= 4
...........
Answer:
x=2 y=-5
Step-by-step explanation:
7x-y=19
2x-3y=19
Multiply the first equation by -3
-3(7x-y)=19*-3
-21x +3y =-57
Add this to the second equation to eliminate y
-21x +3y =-57
2x-3y=19
-----------------------
-19x = -38
Divide by -19
-19x/-19 = -38/-19
x = 2
Now we need to find y
7x-y = 19
7(2) -y =19
14 -y =19
Subtract 14 from each side
14-14 -y=19-14
-y=5
Multiply by -1
y = -5
Answer:
the smaller cubes surface area is 1/8 the surface area of the original cube
Step-by-step explanation:
one cube = 1
one cube cut (divided) into 8 pieces= 1 divided by 8
1 divided by 8 can also be written as a fraction as 1/8
