Let x be the required waranty period, then
P(X < x) = P(z < (x - 12)/(8/12)) = 1 - 0.067 = 0.933
P(z < 12(x - 12)/8) = P(z < 1.498)
12(x - 12)/8 = 1.498
x - 12 = 8(1.498) / 12 = 0.9987
x = 12 - 0.9987 = 11
Therefore, they should waranty for 11 years so that no more than 6.7% fail within that time.
cost of production = %13
Let the price be p, then
revenue less price of failed iron = p - 0.067(13) = p - 0.871
Profit = p - 0.871 - 13 = 5
p - 13.871 = 5
p = 5 + 13.871 = 18.871
Therefore, the should charge $18.87 per waffle iron.
Answer:
Jeez, This number is not a whole number. The real answer would be 140.714285714
Step-by-step explanation:
But the rounded answer would be about 141.
Answer:
Part a) 
Part b) 
Part c) 
Part d) 
Part e) 
Part f) 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
A <u><em>centroid</em></u> of a triangle is the point where the three medians of the triangle meet. A median of a triangle is a line segment from one vertex to the mid point on the opposite side of the triangle.
The centroid is located two thirds of the distance from any vertex of the triangle
Part a) Find ML
we have

we know that

substitute the given value


Part b) Find HM
we have

we know that

substitute the given value


Part c) Find JM
we have

we know that

substitute the given value


Part d) Find MI
we have

we know that

substitute the given value


Part e) Find GM
we have

we know that

substitute the given value


Part f) Find MK
we have

we know that

substitute the given value


Answer:
B. 3x^2 - 13x + 7
Step-by-step explanation:
6x^2 - 5x + 3 - (3x^2 + 8x - 4)
6x^2 - 5x + 3 - 3x^2 - 8x + 4
3x^2 - 13x + 7
{(3x)}^{2}-2(3x)(5)+{5}^{2}
−2(3x)(5)+5
2
{(3x-5)}^{2}