Answer:
Step-by-step explanation:
7 songs at $1.99 each= 13.93
30-13.93= 16.07
16.07 + 10= 26.07
4 songs for $7.99= 31.96
26.07- 31.96= -5.89
so his pay check was $5.89
Let's work out the discriminant b^2 - 4ac:-
D = (-5)^2 - 4*1*7 = 25 - 28 = -3
A negative discriminant shows that there are NO real solutions Answer
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:
I can help you just post another thing because there is no picture.
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
its pretty easy ngl but yeah stack it
