Answer:
15
Step-by-step explanation:
Call the unknown time x.
The mean is the sum of the numbers divided by the number of numbers.
There are 5 numbers.
(8 + 10 + 38 + x + 20)/5 = 18.2
(x + 76)/5 = 18.2
x + 76 = 91
x = 15
Let x=number you are solving for
x*3=7
x=7/3
x=2.3333
A rhombus is a quadrilateral whose all sides are of equal length, and the opposite are parallel to each other.
<h3>What is a Rhombus?</h3>
A rhombus is a quadrilateral whose all sides are of equal length, and the opposite are parallel to each other.
Given the diagonal MO divides the rhombus LMNO, is two isosceles triangles, therefore, ΔLMO and ΔMNO.
Since the triangles are isosceles triangles two of the sides of the triangle will be of the same length. Therefore,
In ΔLMO
LM = LO
In ΔMNO
MN = ON
since it is the property of the rhombus that the length of its adjacent sides is equal, therefore, the LMNO is a rhombus.
Learn more about Rhombus:
brainly.com/question/14462098
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Relative extrema occur where the derivative is zero (at least for your polynomial function).
So taking the derivative we get
<span>20<span>x3</span>−3<span>x2</span>+6=0
</span><span>
This is a 3rd degree equation, now if we are working with complex numbers this equation is guaranteed to have 3 solutions by the fundamental theorem of algebra. But the number of real roots are 1 which can be found out by using Descartes' rule of signs. So the maximum number of relative extrema are 1.</span>
1 ounce for every 38 cents hope this helps
