Answer:
10.5
Step-by-step explanation:
1.5 inches
.5 and 1.5 =3
3x3.5=10.5
The polynomial function whose real zeros are in -1, 1, 3 and whose degree is 3 is 
Step-by-step explanation:
We need to find a polynomial function whose real zeros are in -1, 1, 3 and whose degree is 3.
If -1, 1 and 3 are real zeros, it can be written as:
x= -1, x= 1, and x = 3
or x+1=0, x-1=0 and x-3=0
Finding polynomial by multiply these factors:

So, The polynomial function whose real zeros are in -1, 1, 3 and whose degree is 3 is 
Keywords: Real zeros of Polynomials
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Answer:
length of an arc =1 /3 unit or 0.3unit
Step-by-step explanation:
to calculate the length of an arc, having it in mind that the arc is a portion of the circumference of a circle.
circumference of a circle = 6unit
Ф = 20°
recall,
the formulae for finding the length of an arc
= 2πr(Ф/360)
assuming that r is the radius of the circle
so, the circumference of a circle is given to be = 2πr
6 = 2πr
r = (6/2π)
length of an arc = 2πr(Ф/360)
remember that r = (6/2π)
length of an arc = 2π(6/2π) [20°/360°]
length of an arc = 6 × 20°/360°
length of an arc = 120°/360°
length of an arc = 1/3unit
Sum of interior angles = (n-2) × 180<span> = (5-2) x 180 = 3 x 180 = 540
so
x + 90 + 107 + 144 + 138 = 540
x + 479 = 540
x = 540 - 479
x = 61</span>