Hey there! :D
So, we know that there are 3 z's and 3 6's.
3*z= 3z
6*3= 18
3(z+6) <== equivalent expression
3z+18 <== equivalent expression
z is by itself. It shouldn't combine. It should stay the same. 6 as a unit is separate from z.
Choices "B" and "E" are correct.
I hope this helps!
~kaikers
Answer:
30
Step-by-step explanation:
You do 271 ÷9
= 30.11111111
The answer is your whole number (30)
Not sure but I think it's (3)
For the equation:
-1=5 x^2 - 2 x
5 x^2 - 2 x + 1 = 0, then we substitute: a=5, b=-2, c =1
to discriminant formula: D= b^2 - 4 a c = (-2)^2 - 4 * 5 * 1 = 4 - 20 = - 16
Answer:
The discriminant is equal to -16 which means the equation has no real number solutions.
Step-by-step explanation:
x+y=-2
x-y=-6
x=-2-y
(-2-y)-y=-6
-2-2y=-6
-2y=-4
y=2
x=-4
