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Lostsunrise [7]

2 years ago

6

Y=x^2-10x-2 Find the equation of the axis of symmetry

1 answer:

Lemur [1.5K]2 years ago

7 0

The axis of symmetry would be (5, -27). To find the axis you can use two equations but for this question I used -b/2a. In the equation, the a is 1 and the b is -10. So, you would substitute it in and get 10/2 which would give you x=5. Then, you would substitute it into the equation. Like this —> y=(5)^2-10(5)-2. You would end up with y=25-50-2. This would give you a y of -27 leaving you with the answer (5,-27).

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charlene has eight more dollars than Megan. Together they have $86.00. Which equiation can be used to determine the amount of mo

Paul [167]

Answer:

Megan has 35.00 dollars.

Step-by-step explanation:

Divide 86.00 by 2 which equals 43.00. Next, minus 8 from the 43.00 and you will get what Megan has. Megan has 35.00 dollars.

I hope this helps!

8 0

2 years ago

Suppose the population of a certain city is 5289 thousand. It is expected to decrease to 4530 thousand in 50 years. Find the per

Tcecarenko [31]

Answer:

14.4% decrease

Step-by-step explanation:

Here is the formula for finding the percentage of decrease:

(starting value - final value) / starting value * 100.

So for your question,

$\frac{5289-4530}{5289} =.0144\\.0144 * 100 = 14.4\\$ /

There was a 14.4% decrease within 50 years.

5 0

2 years ago

Carl earns $3.25 per hour walking his neighbor's dogs. He walks them 1/3 of an house in the morning and 1/2 of an hour is the af

Lera25 [3.4K]

Answer:

5/6

Step-by-step explanation:

You just need to ad 1/3 and 1/2 which would equal 5/6

8 0

3 years ago

arthur wants to buy an item that costs p dollars before tax. using a 6% sales tax rate, write two different expressions that rep

Mkey [24]

For this case we have the following variable:

p: cost of the item that Arthur wants to buy before tax

The expression for the 6% tax is given by:

$\frac{6}{100} p$

Or equivalently:

$0.06p$

Therefore, two different expressions for the total cost are:

Expression 1:

$p + \frac{6}{100} p$

Expression 2:

$p + 0.06p$

To prove that they are equal, suppose that the item costs $ 100:

Expression 1:

$p + \frac{6}{100} p$

$100+ \frac{6}{100} 100$

$100 + 6$

$106$

Expression 2:

$p + 0.06p$

$100 + 0.06 (100)$

$100 + 6$

$106$

Since the cost is the same, then the expressions are the same.

Answer:

Two different expressions that model the problem are:

$p + \frac{6}{100} p$

$p + 0.06p$

8 0

2 years ago

Luke earned a salary of 48,048 last year. how much did he earn per month?

viktelen [127]

$4004 just take 48048 and divide that by 12 to get your answer

5 0

2 years ago

Read 2 more answers