Answer: 50
Step-by-step explanation:





Substitute 3 for x:
= 20(3)-10
= 50
Answer:
864.4
Step-by-step explanation: if you find what 6% of 634 is it is 38.4 so then you multiply 38.4 by 6 and you get 230.4 and then you add that to 634.
hope this helps :)
Try this option:
A. f(4)=7 - false; explanation: x=4, it means that x>0 and x²-1=4²-1=15 ⇒ f(4)=15.
B. f(1)=0 - true; explanation: x=1, it means that x>0 and x²-1=1-1=0.
C. f(-1)=2 - true; explanation: x=-1, it means that x<0 and -x+1=1+1=2.
D. f(-2)=0 - false; explanation: x=-2, it means that x<0 and -x+1=2+1=3 ⇒ f(-2)=3.
Answer:
2 dollars
Step-by-step explanation:
4x2 =8