Answer:
17000 batteries
Step-by-step explanation:
Three years and one month is equivalent to the mean minus one standard deviation.
Three years and seven months is equivalent to the mean plus one standard deviation.
For a normal distribution, we know that 68% of population is between mean ± 1 sd, then can be expected that 25000*68% = 17000 of batteries last between three years and one month and three years and seven months
Answer:
B. It is between 4 and 5
Step-by-step explanation:
When you square 4 you get 16. Do the same to 5 and you get 25.
Answer:
Step-by-step explanation: Can i get brain plz!
<span><span><span><span>2/7</span>k</span>−<span><span>1/14</span>k</span></span>=<span>−3</span></span>Step 1: Simplify both sides of the equation.<span><span><span><span>2/7</span>k</span>−<span><span>1/14</span>k</span></span>=<span>−3</span></span><span><span><span><span>2/7</span>k</span>+<span><span><span>−1/</span>14</span>k</span></span>=<span>−3</span></span><span><span>(<span><span><span>2/7</span>k</span>+<span><span><span>−1/</span>14</span>k</span></span>)</span>=<span>−3</span></span>(Combine Like Terms)<span><span><span>3/14</span>k</span>=<span>−3</span></span>Step 2: Multiply both sides by 14/3.<span><span><span>(<span>14/3</span>)</span>*<span>(<span><span>3/14</span>k</span>)</span></span>=<span><span>(<span>14/3</span>)</span>*<span>(<span>−3</span>)</span></span></span>
Answer:<span>k=<span>−14</span></span><span>
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