Answer:
1.6%
Step-by-step explanation:
The probability he makes a throw is .25
P(1st throw) =.25
P (2nd throw) =.25
P(3rd throw) = .25
P(make 1, then make 2, then make 3) = .25*.25*.25 =.015625
Changing to percent form = 1.5625%
To the nearest tenth percent
1.6%
It's too hard for me to show all the work, but you can find a common denominator in 8.
Change 3/4 to 6/8 and -3/2 to -12/8.
Now that all the fractions have the same denominator, you can multiply the whole problem by 8 and cancel out all denominators.
You are left with 6=3x-12
Add 12 to 6 and cancel out on the right side.
18=3x
Divide by 18 by 3
x=6
Pythagorus Theorm
a sqr + b sqr = c sqr
25 sqr + 7 sqr = c sqr
625 + 49 = c sqr
625 + 49 = 674
c = sqr root of 674
c = 25.96 (rounded to 2dp)
(23+15x) when you add this you will have your answer
