3 years ago

The mean life of a battery is 50 hours with a standard deviation of 6 hours. The

1 answer:

Alborosie3 years ago

6 0

It would be atleast 250

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FromTheMoon [43]

Answer: $t\in [\dfrac{1}{4},2]$

Step-by-step explanation:

Given

Inequality is $4t^2\leq9t-2$

Taking variables one side

$\Rightarrow 4t^2-9t+2\leq0\\\Rightarrow 4t^2-8t-t+2\leq0\\\Rightarrow 4t(t-2)-1(t-2)\leq0\\\Rightarrow (4t-1)(t-2)\leq0$

Using wavy curve method

$t\in [\dfrac{1}{4},2]$

3 0

2 years ago

AVprozaik [17]

Answer:

$33.88

Step-by-step explanation:

12.1*2.8 is equal to $33.88

4 0

3 years ago

xenn [34]

Answer:

338

Step-by-step explanation:

26 divided by 2 is 13. the width is 13. 26 times 13 is 338

hope this helps!

4 0

2 years ago

ivanzaharov [21]

.......................................

3 0

3 years ago

snow_tiger [21]

The answer is A hope you get it right (:

6 0

3 years ago