Let y- 2t+ 5 be a linear function representing the distance from home for an ant tminutes after starting out from a location nea
1 answer:
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Answer:
The required equation is .
Step-by-step explanation:
Consider the provided information.
Write a division equation that has a solution of 12.
The required division equation is shown below:
Solve the above equation a shown.
Now check this with algebraic method.
The required tape diagram is shown below:
Which is true, Hence 12 is the correct answer.
Given that normally distributed data set has a mean of 55 and 99.7% of data fall between 47.5 and 62.5.
Let s be the standard deviation of data set.
Since 99.7% data fall within 3 standard deviations of mean, z-value for 47.5 and 62.5 has an absolute value of 3.
That is |z|=3
But z=
Let us plugin x=47.5 and mean =55 and equate it to 3.
That is
Since x is always positive ( being standard deviation),
Hence
We will get same value with 62.5 as well.
Hence standard deviation of data set is 2.5.