Answer:
probability she does not win badminton: 1/10
probability she does not win tennis: 3/5
not sure what the other tree is supposed to be
i think the probability of her winning both is 11/15
Step-by-step explanation:
i havent done this in a while so i could be wrong:/ sorry if it is
Answer:
x = 10√3
Step-by-step explanation:
Because of the right angles, we can use Pythagoras
30² - x² = y² (a) Largest triangle
y² - 20² = h² (b) Medium triangle
substitute y² from (a) into (b)
30² - x² - 20² = h²
500 - x² = h² (d)
x² - h² = (30 - 20)² (c) smallest triangle
substitute h² from (d) into (c)
x² - (500 - x²) = 100
2x² = 600
x² = 300
x = 10√3
Mr. chang paid the least because 10% off 25 is more than 20%off 30
Answer:
10 + 4 i
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Answer:
Step-by-step explanation:
-5x+31+3x=3
move everthing to one side
-5+31+3x-3=0
add and subtract common terms
-2x+28=0
divide across by common denominator
-x+14=0
Solve for x
x=14
