The formula for this type of question is z=x-u/y
z=-2 (z-value)
u = 27 (mean)
y = 4 (standard deviation)
Therefore -2=x-27/4
You now figure this out like a normal equation
4x-2=4 X x-27/4
-8+27= x-27+27
19=x
Therefore the data value of x is 19
Answer:
B) addition property
Step-by-step explanation:
thinking that 3x - 30 - 0 should equal 0.
3x - 30 - 0 = 0
to get rid of numbers on side with variables, we have to add them to both sides (to make it 0 in side with variable.)
3x - 30 - 0 = 0
+30 +0 = +30 +0
3x = 30 <- step 4
Answer:
see explanation
Step-by-step explanation:
put a point to the right of -1 (-0.9)
then, put a point 2 points to the left of -1 (-1.2)
Answer:
the first step is subtract 4 from both sides
x + 4 > 8
x + 4 - 4 > 8 - 4
Step-by-step explanation: