Joanne is planning her spring garden. Plants cost an average of $4.95. She will be
2 answers:
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We have that
2sin²<span>x - sinx - 3 = 0
</span>
Let
A------> sin x
so
2A²-A-3=0
using a graph tool-----> to resolve the second order equation
see the attached figure
the solutions are
A=-1
A=1.5------> is not solution because sin x <span>can not be 1.5
the solution is
A=-1
therefore
sin x=-1
x=arc sin(-1)=-90</span>°
the answer is
sin x=-1
x=-90° or 270°
2sin²<span>x - sinx - 3 = 0
</span>
Let
A------> sin x
so
2A²-A-3=0
using a graph tool-----> to resolve the second order equation
see the attached figure
the solutions are
A=-1
A=1.5------> is not solution because sin x <span>can not be 1.5
the solution is
A=-1
therefore
sin x=-1
x=arc sin(-1)=-90</span>°
the answer is
sin x=-1
x=-90° or 270°
Answer with Step-by-step explanation:
We are given that
The probability that an American CEO can transact business in foreign language=0.20
The probability than an American CEO can not transact business in foreign language=
Total number of American CEOs chosen=12
a. The probability that none can transact business in a foreign language=
Using binomial theorem
The probability that none can transact business in a foreign language=
b.The probability that at least two can transact business in a foreign language=
c.The probability that all 12 can transact business in a foreign language=
The probability that all 12 can transact business in a foreign language=
Answer:
The complex number belongs to the third quadrant of the complex plane.
Step-by-step explanation:
Let be . In the complex plane, if
(real component) and
(imaginary component), the number belongs to the third quadrant of the complex plane. The complex number
belongs to the third quadrant of the complex plane.