Anna baked 3 batches of cookies with c cookies in each batch. She then ate 8 cookies!

Mathematics

2 answers:

Romashka [77]3 years ago

8 0

If your looking for the equation...

3c-8

RSB [31]3 years ago

5 0

For this case we will pose an equation according to the amount of cookies left after Anna ate 8.

So:

If I bake 3 batches of cookies and each batche had "c" cookies, then we have: $3c$ .

IF Anna ate 8 we have:

$3c-8$

Thus, equation 3c-8 represents the amount of cookies left after Anna ate 8.

ANswer:

$3c-8$

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lesya692 [45]

This is an example of a piecewise defined function. It means that the function has not a unique formula to represent it, but it depends on "where" you want to compute it.

So, if you choose any input $x$ , you have two alternative:

If $x \neq 3$ (i.e., if you've chosen any input that is not 3), the output will be the opposite of the input you've chosen ( $y=-x$ )
If $x=3$ , the ouput will be -1.

So, let's forget about $x=3$ for a moment. For any input $x$ you choose, the answer is $-x$ . The graph of this function is the bisector of the second and fourth quadrant.

Now remember that there is our special case: you have to "carve a hole" in our line, at $x=3$ , and assing to this point the value -1, instead of what we would expect, i.e. -3.

So, the graph of this function is the line $y=-x$ , except for one point ( $x=3$ ), where we reassign the value to be -1.

5 0

3 years ago

Just before a referendum on a school budget, a local newspaper polls 402 voters to predict whether the budget will pass. Suppos

Sliva [168]

Answer:

21.21%

Step-by-step explanation:

Assume that proportion of support follows normal distribution.For resulting in defeat the proportion of support should less than 0.5.Given that the proportion of support is p= 0.52.

Sample size(n)= 402

We know that standard deviation is given as

$\sigma = \sqrt {\dfrac {p(1-p)}{n}}$