Answer:
Step-by-step explanation:
Since they both contain 2y we can just subtract the second from the first to eliminate y
4x+2y-3x-2y=6-1
x=5, since 4x+2y=6 we have
4(5)+2y=6
20+2y=6
2y=-14
y=-7
So the solution point (x,y) is (5,-7)
Answer:
function
Step-by-step explanation:
we see 2 sets of values : for x and for y.
the set for x is {8, 0, -1, 9}
the set for y is {s, u, k, d}
for every element of set x there is an associated element of set y.
that is a function of x.
The answer is 3x( x - 1 )
Answer:
5 5/8
Step-by-step explanation:
How many whole 8's will fit into 45?
We find that five whole 8's fit into 45.
8*5=40
45-40=5
So, the mixed number is 5 5/8
9514 1404 393
Answer:
- zeros: t = 1, t = -1/2
- no: the domain of the function is t ≥ 0
- 8 feet
Step-by-step explanation:
The zeros are the values of t that make the factors zero.
1 -t = 0 ⇒ t = 1
8 +16t = 0 ⇒ t = -8/16 = -1/2
The equation is used to model height after the ball is thrown. We don't expect it to be a good model before the ball is thrown (t < 0), so the zero in that region is extraneous.
Only the positive zero is in the function's domain, so that is the only one that is meaningful.
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When t = 0 (at the time the ball is thrown), the function value is ...
h(0) = (1 -0)(8 +0) = 8
The ball is thrown from a height of 8 feet.