Answer:
225.75
Step-by-step explanation:
Before Tax Price: $210.00
Sale Tax: 7.50% or $15.75
After Tax Price: $225.75
Answer:
x= 5/2, x= -3
4x^2+2x-30=0; Factor that without the 0. Then you get 2 (2x-5) (x+3)=0.
2x-5=0 x= 5/2
x+3=0 x= -3
Hope this helps! :D
Answer:
4) is a function 5) is not a function
Step-by-step explanation:
4) This is a function because even tho some numbers in the domain have the same y value that doesnt mean the x values overlap. THink of it graphically or draw points do the points overlap? It shouldn't unlike question 5!
5) This is NOT a function. Why??? This is because now all numbers except 4 have more than one y value for one x value
for example: 1 has -1 and 3
That would overlap!!