Answer:
-7
Step-by-step explanation:
30-16= -5n +3n
14 = -2n
multiplying both by half,u have -
7 = -n
multiply both by -1
7 = n
-8 you have to do a number line
42.50$ ? 21 times 1.25 plus 13 times 1.25 = 42.50?
Answer:
Step-by-step explanation: I Can Tell You The First One Is Correct And I Believe The Second Was Is Too.
Answer:
9 in approx
Step-by-step explanation:
Step one:
given data
the shape of the satellite dish takes the form of a paraboloid.
the diameter of the dish is 38in wide
and 10 inches deep.
step two:
The expression for the paraboloid is

where y is the vertical axis of the paraboloid
a is vertex to focus.
and x is the radius of the dish
x= 38/2= 19in
substituting we have

divide both sides by 40

vertex to focus= 9 in approx