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Arada [10]
3 years ago
10

Tell wether the sequence is arithmetic. If it is identity the common difference. 19,8,-3,-14

Mathematics
1 answer:
irakobra [83]3 years ago
8 0
This is an arithmetic the common difference is 11.
so 19-11 is 8
8-11 is 3 etc...
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The final exam of a particular class makes up 40% of the final grade, and Moe is failing the class with an average (arithmetic m
amm1812

Answer:

%82.5

Step-by-step explanation:

  1. The final exam of a particular class makes up 40% of the final grade
  2. Moe is failing the class with an average (arithmetic mean) of 45% just before taking the final exam.

From point 1 we know that Moe´s grade just before taking the final exam represents 60% of the final grade. Then, using the information in the point 2 we can compute Moe´s final grade as follows:

FG=0.40*FE+0.60*0.45,

where FG is Moe´s Final Grade and FE is Moe´s final exam grade. Then,

\frac{ FG-0.60*0.45}{0.40}=FE.

So, in order to receive the passing grade average of 60% for the class Moe needs to obtain in his exam:

FE=\frac{ 0.60-0.60*0.45}{0.40}=0.825

That is, he need al least %82.5 to obtain a passing grade.

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3 years ago
What is the factor of x²-4x+24​
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Their are no possible factors for this expression.

Step-by-step explanation:

3 0
2 years ago
Px + qy = r<br> 2px - qy = 2r<br> When solving this system of equations, x =
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Step-by-step explanation:

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Given Sin x= 0.5, what is cos x?
Svetllana [295]
Sin x = 0.5
sin x = 1/2
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The opp side is √3

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3 0
2 years ago
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