Answer:
Question 1: D. 1 + 2 + 6/11
Question 2: 1. yes 2. no 3. no 4.yes
Question 3: 5/6 and 4/9
Question 4: C. 3 and 7/12
Question 5: A. 1 and 4/12 = 1 and 1/3
Step-by-step explanation:
The following diagram models a ratio relationship.
1 answer:
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9514 1404 393
Answer:
a. 1.48 seconds
Step-by-step explanation:
You want to find the larger value of t such that h(t) = 10.
-16t^2 +25t +8 = 10
16t^2 -25t +2 = 0 . . . . subtract the left side to get standard form
Using the quadratic formula, we find the values of t to be ...
t = (-(-25) ± √((-25)^2 -4(16)(2)))/(2(16)) = (25±√497)/32
t ≈ 0.08 or 1.48
The ball goes in the hoop about 1.48 seconds after it is thrown.
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<em>Additional comment</em>
The quadratic formula tells us the solution to ...
ax² +bx +c = 0
is given by ...
Here, we have a=16, b=-25, c=2. Of course, our variable is t, not x, but the relation is the same.