Color Pencil Price per Pencil

2 answers:

5 0

First, add up all the prices.

3.50 + 1.25 + .76 = 5.51

I tested a few numbers and I discovered that Mike bought 37 pencils.

5.51 * 37 = 203.87

lisov135 [29]3 years ago

3 0

What you can do is trial and error. I started going multiplying each price by 10s and when I started multiplying by 30s I got a total of 37 colored pencils

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What is the axis of symmetry of the function f(x) = –(x + 9)(x – 21)?

ludmilkaskok [199]

First, we have to realize that this is factored form, so we have to put this in standard quadratic form using FOIL, which is a rule mandating how we multiply the numbers here. F stands for First, which means the first number inside the parentheses for both of them, then O means the first number in the first quantity(fancy word for parentheses) multiplied by the last number of the second quantity, and so forth. When you are done, you combine like terms

anyway, you end up with x²-12x-189, but you have to inverse all numbers because of the parentheses in front, so it becomes -x²+12x+189.

Now you can find the axis of symmetry uisng the equation -b=2a (oh yeah, I forgot to mention: the standard quadratic form is a(x)²+b(x)+c already). So you do -12 / -2, which then becomes 6.

The axis of symmetry is 6

3 0

3 years ago

Answer #1 please ASAP

Ad libitum [116K]

Answer:

4.5

Step-by-step explanation:

To find the median, put the data in order from smallest to largest

1,2,2,3,4,4,5,5,8,10,10,11

The count up the number of data points

Divide by 2

12/2

Split the data into 2 groups, 6 in each, starting at the beginning

1,2,2,3,4,4, 5,5,8,10,10,11

Since there is an even number

Add the last number in first group and the first number in the last group and divide by 2

(4+5)/2 = 9/2 = 4.5

The median is 4.5

6 0

3 years ago

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Bingel [31]

Answer:

$11040

Step-by-step explanation:

first of all the question says that $4000 were earned in a year and asks for what the new vale would be after the next 3 years with a discount rate of 8%.

If 1 year=$4000,then 3 years=$12000

100%-8%=92% (this happens because there is still a remaining amount that still has a cost to it),so 12000*92%=$11040

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3 years ago

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kirill [66]

We can wrap 12 presents. multiply the number of yards by the feet.

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3 years ago

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Solve this the link is down below