Answer:
450, 000 or 450, 020
Step-by-step explanation:
If you want to round the number to the ten thousands place then it would be 450, 000.
I you want to round the number to the ones place the it would be 450, 020
<u>Given</u>:
The height of an object project upward is given by the polynomial

where t represents the time, in seconds.
We need to determine the height after t = 2.5 seconds.
<u>Height of an object:</u>
The height of an object after 2.5 seconds can be determined by substituting t=2.5 in the polynomial, we get;

Simplifying, we get;



Thus, the height of an object is 140 feet.
8x + 3y = 20.50
-
4x+5y=22.50
=
4x-2y=-2, so you have to divide each number by 2, then
2x-y=-1, so
-y=-1-2x /-1, y=1+2x, then replace it with one original equation like the first one for instance:
8x+3(1+2x)=20.50, then
8x+3+6x=20.50, then
14x=20.50-3
14x=17.5
x=1.25, then solve y:\
y=1+2*(1.25)
y=1+2.5
y=3.5,
So answer is x=1.25, and y=3.5
I think the answer is maybe A
A coupon is a paper with a discount.