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Stels [109]
3 years ago
11

2/5 ≤ x−4 answer, as an inequality

Mathematics
1 answer:
Greeley [361]3 years ago
7 0

\dfrac{2}{5}\leq x-4\qquad|\text{add 4 to both sides}\\\\4\dfrac{2}{5}\leq x\to x\geq4\dfrac{2}{5}

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Which set of real numbers only contain integers?
a_sh-v [17]

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3. 2/9,2,0

Step-by-step explanation:

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4 0
3 years ago
Among fatal plane crashes that occurred during the past 55 ​years, 415 were due to pilot​ error, 96 were due to other human​ err
azamat

Answer:

Relative frequency:

\text{Pilot error}=415/1370=0.30\\\\\text{Other human error}=96/1370=0.07\\\\\text{Weather}=169/1370=0.12\\\\\text{Mechanical problems}=622/1370=0.45\\\\\text{Sabotage}=68/1370=0.05\\\\

The most serious threat to aviation safety is, according to this data, "mechanical failures". It can be improved by more rigorous inspection and better maintenance policies and execution.

Step-by-step explanation:

We have the data for fatal plane crashes. The sum of plane crashes is

We can calculate the relative frequency as:

\text{Pilot error}=415/1370=0.30\\\\\text{Other human error}=96/1370=0.07\\\\\text{Weather}=169/1370=0.12\\\\\text{Mechanical problems}=622/1370=0.45\\\\\text{Sabotage}=68/1370=0.05\\\\

We can see that the most frequent cause is "mechanical problems", with a relative frequency of 0.45.

4 0
3 years ago
Simplify and then evaluate the equation<br> when c= 2 and r= 10.<br> C2 + 4r – 3(r - c) = [?]
kenny6666 [7]

Answer:

20

Step-by-step explanation:

C2 + 4r – 3(r - c) = [?]

(2)(2)+(4)(10)−3(10−2)

20

4 0
3 years ago
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