Answer:
7/40
Step-by-step explanation:
probability of taking 7 vehicles from 10 vehicles = 10C₇
number of ways taking 2 SUVs and 5 trucks = 3C₂* 7C₅ = 63
number of ways taking 3 SUVs and 4 trucks =3C₁*7C₄ = 35
number of ways taking 2 SUVs and 5 trucks or 3 SUVs and 4 trucks = 63 + 35 = 98
The probability that any 7 randomly chosen parking spots have 2 SUVs and 5 trucks or 3 SUVs and 4 trucks is = 98/120 = 49/60
number of ways taking 7 randomly chosen vehicles, exactly 1 is an SUV = 3C₁*7C₆ = 21
The probability that of any 7 randomly chosen vehicles, exactly 1 is an SUV is 21/120 = 7/40
63=21% of all
percent is parts out of 100
63=21/100 of all
times both sides by 100/21
6300/21=all
300=all
all-wednesday=thu+fri
300-63=thu+fri
137=thu+fri
they collected 137 cans on thursday and friday combined
K------------L
M-----------N
Answer:
x = 5, -5, 4i, -4i ;
Step-by-step explanation:
assume
Now the above equation is a quadratic equation.
There are two solutions of any quadratic equation. Solution of a quadratic equation is given by:
similarly there are two solutions of the quadratic equation which are:
Since
Therefore
; where (the numbers with 'i' are called imaginary numbers)
Therefore
There is no question here... Sorry.