0.8931/3 is equal to 0.2977
Answer:
x=3
Step-by-step explanation:
Answer:
0.63
Step-by-step explanation:
given that a nervous kicker usually makes 70% of his first field goal attempts. if he makes his first attemply, his success rate rises to 90%.
We have to find the probablity that he makes his first kick and he makes the second kick
Probability of making first kick = 0.70
Since probability of making second kick provided he made first kick = 90%
Required probability = Prob he makes first kick and he makes the second kick
=P(AB) = P(A) P(B/A)= 0.70(0.90)
where A = he makes first kick
B = he makes second kick
= 0.63
Answer:
36 times 2 is 72
Step-by-step explanation:
That is what you're asking right? I'm just going by the last one.
Turning up the edges of the sheet metal will result in the 20 inches of
metal being divided into x inches of the first side, then the unknown
width of the gutter (let's call it "y") and then again x inches for the
second side.
As a picture:
x|______|x/y
As a formula:
20 = x + y + x = 2x + y
Resolving this to y we get:
20 - 2x = y
and switching it around:
y = 20 - 2x,
Now for part b) of your question:
The area of the gutter's cross-section is its width (y) multiplied with its height (x).
A(x,y) = x * y
If we use our result from a) to eliminate y then we can see that
A(x) = x * y = x * (20-2x) = 20x-2x^2
So I'd say that the answer to part b) should be:
A(x) = 20x - 2x^2