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Dmitry_Shevchenko [17]
3 years ago
10

38F hotter or 2C (Tempture)

Mathematics
2 answers:
dedylja [7]3 years ago
6 0
38F is hotter than 2C
viva [34]3 years ago
4 0
38* F is hotter. 2*C is only 35.6*
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Police departments use exams as part of their promotion process and officers have to score higher than 80% of those taking the t
Rashid [163]

Answer:

z score for officer1 is 1, he will be promoted.

z score for officer2 is 0.33, she will not be promoted.

Step-by-step explanation:

Officer 1 get 74 points. O1=74

Officer 2 get 68 points. O2=68

Mean of the exam is 65 and standart deviation is 9 . M=65 and s=9

1) z-score for O1 can be found using the formula:

\frac{74-65}{9} =1

2) z-score of O2 is

\frac{68-65}{9} =0.33

Promotion is gained if an officer (O), scores higher than 80% of the officers taking the exam. This means they need to be at least in the top 20% of the exam. Therefore we look for the corresponding z score for the P(z)=0.2 which is 0.8416. Since z-score of O1 is bigger that 0.8416, he promotes. Officer2 who got 68 from the exam cannot promote since corresponding z-score is less than 0.8416

4 0
3 years ago
Solve the question, thank you
trasher [3.6K]

Answer:

A . m = 11/6

its going to be a

8 0
3 years ago
Read 2 more answers
Question 5 of 6Which exponential expression is equivalent to the one below?(22• (-7))40A. 40 • (22• (-7))O B. (22) • (-7)40C. (2
zmey [24]

Okay, here we have this:

Considering the provided expression, we are going to analize which exponential expression is equivalent, so we obtain the following:

As the property of the exponent of a multiplication says that it is equal to the product of each number raised to that power. We have this:

\begin{gathered} \mleft(22\cdot\mleft(-7\mright)\mright)^{40} \\ =(22)^{40}\cdot(-7)^{40} \end{gathered}

Finally we obtain that the correct answer is the option D.

6 0
1 year ago
Calculate the value of 3√216 <br> by using prime <br><br>factors
Trava [24]

Answer:  43,2

Step-by-step explanation:

\bf 3\sqrt{216 }=3\cdot 6\sqrt{6}=18\sqrt{6} \approx43.2  \\\\ \sqrt{216} =\sqrt{ 2^{3}\cdot 3^3}=\sqrt{2^2\cdot 3^2\cdot 3\cdot 2}=3\cdot 2\sqrt{3\cdot 2} =6\sqrt{6}

5 0
3 years ago
Pls help on this i cant do it
kogti [31]

Answer:

y=2x-1

Step-by-step explanation:

y=mx+b

insert Point (0,-1)

-1 = m * 0 + b

-1 = b

slope:

m = delta y / delta x

m = 2 / 1

m = 2

4 0
3 years ago
Read 2 more answers
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