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chubhunter [2.5K]
3 years ago
7

The ages of workers in a certain industry are approximately normally distributed with a mean of 30 years and a

Mathematics
1 answer:
denis23 [38]3 years ago
5 0

Answer:

p value 0.07

Step-by-step explanation:

Option C on Khan Academy

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KengaRu [80]

Answer:

What are the temperatures

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Does anyone know this?
vivado [14]

Answer:

I got this one

<n would equal 20, <m would equal 50

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NO LINKS!! Please help with questions 3 and 4​
Taya2010 [7]

Answer:

\textsf{3.} \quad (x,y) \rightarrow (x-5,y+2)

\textsf{4.} \quad (x,y) \rightarrow (x+3,y+1)

Step-by-step explanation:

<h3><u>Question 3</u></h3>

Given vertices of ΔLMN:

  • L = (1, -1)
  • M = (4, 1)
  • N = (5, -1)

Given vertices of ΔL'M'N':

  • L' = (-4, 1)
  • M' = (-1, 3)
  • N' = (0, 1)

From inspection of the given diagram, we can see that the two triangles are congruent since their corresponding angles and corresponding side lengths are the same.  

There is no apparent reflection or rotation, so the transformation of ΔLMN to ΔL'M'N' is by translation.

To find the mapping rule for the translation, choose one pair of corresponding vertices and determine the difference between the x and y values of the translated point and the original point:

x_{M'}-x_M =-1-4=-5 \implies \textsf{5 units left}

y_{M'}-y_M =3-1=2 \implies \textsf{2 units up}

Therefore, the mapping rule for the translation is:

(x,y) \rightarrow (x-5,y+2)

<h3><u>Question 4</u></h3>

Given vertices of ΔLMN:

  • L = (-6, -4)
  • M = (-5, -1)
  • N = (-2 -4)

Given vertices of ΔL'M'N':

  • L' = (-3, -3)
  • M' = (-2, 0)
  • N' = (1, -3)

From inspection of the given diagram, we can see that the two triangles are congruent since their corresponding angles and corresponding side lengths are the same.  

There is no apparent reflection or rotation, so the transformation of ΔLMN to ΔL'M'N' is by translation.

To find the mapping rule for the translation, choose one pair of corresponding vertices and determine the difference between the x and y values of the translated point and the original point:

x_{L'}-x_L =-3-(-6)=3 \implies \textsf{3 units right}

y_{L'}-y_L =-3-(-4)=1 \implies \textsf{1 units up}

Therefore, the mapping rule for the translation is:

(x,y) \rightarrow (x+3,y+1)

8 0
1 year ago
Read 2 more answers
What is 2x to the second power times x to the second power
ValentinkaMS [17]

\bf 2x^2\cdot x^2\implies 2x^{2+2}\implies 2x^4

5 0
4 years ago
Given the revenue function R(x)= 100x −2x^2 (space) 1 ≤ x ≤ 30 and the cost function C(x)= 500 + 9x for a company, find the prof
ziro4ka [17]

well, once you take in all the Revenue from sales, and subtract all the costs that went in for the product, what's leftover is the Profit.

so then, profit P(x), is simply the revenue minus costs, namely P(x) = R(x) - C(x)

R(x)=100x-2x^2\hspace{5em}C(x)=500+9x \\\\\\ P(x)=(100x-2x^2)~~ - ~~(500+9x)\implies P(x)=91x-2x^2-500 \\\\\\ \stackrel{\textit{at a production of 25 units, x =25}}{P(25) = 91(25)-2(25)^2-500}\implies P(25)=\stackrel{2275-1250-500}{525}

3 0
2 years ago
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