Vampfox
02.10.2020 •
Mathematics
Which one of the following is an irrational number?
O) 0.15
O) 0.516
O) 0.1516
O) 0.505005000500005
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Ответ:
The last one.
Step-by-step explanation:
Any number that is a infinite number is a irrational number.
Ответ:
The pair of numbers are -7 and 4
The factored form is given by
Step-by-step explanation:
The given trinomial is
Comparing, with the equation
a = 7
b = -3
c = -4
In order to write in factored form, we use AC method.
In AC method, first of all we find the product of A and C.
ac = 7×(-4)
ac = -28
Now, we find the factor pairs of 28 such that the product is equal to ac and the sum/difference is equal to b.
-28 = 1×(-28), (-28)×(1), 7×(-4) , (-7)×(4)
Among these factors pairs, (-7)×(4) is the correct choice because
(-7)×(4) = -28
-7 +4 = -3
Hence, the numbers are -7 and 4
Now, we write the middle term -3x as -7x+4x
Factor out GCF
Factored out the common term
Hence, the factored form is given by