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Realieeee15
24.06.2019 •
Mathematics
Find the probability of landing on an even number when spinning the spinner below. 1/4 3/4 1/8 1/2
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Ответ:
There are 8 numbers.
4 of the numbers are even ( 2, 4, 6, 8)
The probability is the number of even numbers over the total numbers:
4/8 which reduces to 1/2.
The answer is 1/2
Ответ:
Step-by-step explanation:
Start by applying the Euclidien division :5∧3-9x²-6x+8/(x+1)=(x+1)(5x²-14x+8)
now let's for the factors of 5x²-14x+8 :
Let Δ be the dicriminant a=5b= -14c=8 Δ=(-14)²-4*5*8=36 ≥0So we have two zeros fo this qudratic function x and y :
x=(14-6)/10=8/10=4/5y=(14+6)/10=2so our factorisation is : (x+1) (x-2)(x-
)