Ryker is given the graph of the function
y= 1/2x^2 - 4 . he wants to find the zeros of the function but is unable to read them exactly from the graph. find the zeros give answer to nearest tenth

x= 2.8   and x= -2.8

Step-by-step explanation:

To find out the zeros, we replace x y with 0 and solve for x

Add 4 on both sides

Multiply by 2 on both sides

8= x^2

Now we take square root on both sides

x= +-

x=2.82843 and x=-2.82843

x= 2.8   and x= -2.8

combine all like terms then its just a 2 step equation

45.36 feet per second

step-by-step explanation:

tyrone travels 30 miles in 58.2 minutes.  

1 mile = 5280 feet; this means he travels

30(5280) = 158400 feet in 58.2 minutes.

1 minute = 60 seconds; this means he travels 158400 feet in

58.2(60) = 3492 seconds.

this gives us the unit rate of

158400/3492 = 45.36 feet per second.