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OLga [1]
3 years ago
5

Marylee paid $40 for an item after she received a 20% discount. Marylee's friend says this means that the original price of the

item was $48. How do you think Marylee's friend arrived at this amount?
Mathematics
1 answer:
Art [367]3 years ago
6 0

Answer:

Step-by-step explanation:

i need this one too helpp

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Y 4 times 5 = square 5 divided by 6 = x times B so the anwser is sq 9
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3 years ago
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Process control is nothing more or less than monitoring quality as the work is being performed. Perhaps the most widely adopted
ella [17]

Answer:

a. Grand Mean = 2.799

b. Standard Deviation = 0.01387

c. Standard Error = 0.0016

d. The range with a Z score of 3 = (2.75739, 2.84061)

Step-by-step explanation:

a. Grand mean :

Given that

Sum of 80 values = 223.91

Total observation = 80

Grand mean = 223.91/80 = 2.799

b. With the excel command "STDEV[range of cells]", we get the standard deviation as = 0.01387

c. Standard error =  Standard deviation / root of n

= 0.01387/\sqrt{80}\\ = 0.0016

d. The range with a Z score of 3 :

lower limit = mean - (3 * SD) = 2.799 - (0.04161) = 2.75739

upper limit = mean + (3 * SD) = 2.799 + (0.04161) = 2.84061

8 0
3 years ago
The cone below has a diameter of 12 units and a slant height of 10 units.Find the volume of the cone
jasenka [17]

Answer:

120

Step-by-step explanation:

4 0
3 years ago
The polynomial below is a perfect square trinomial of the form A^2 - 2AB + B^2
strojnjashka [21]

Answer:

False

Step-by-step explanation:

9x^2-18x+36\\\\=(3x)^2- 3x \cdot 6+6^2\\\\\text{It is not in the form of}~ A^2-2AB+B^2

8 0
2 years ago
The graph of the equation x – 2y = 5 has an x-intercept of 5 and a slope of 1/2 . Which shows the graph of this equation?
Shtirlitz [24]
It would be the last graph because at the x-intercept, it crosses the 5
4 0
3 years ago
Read 2 more answers
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