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aleksley [76]
4 years ago
5

1. For the following quadratic equation, show how both the factoring method and the completing the square method give the same s

olutions. x^2+10x-75=0
2. Write the steps you would use to solve the following quadratic equation. Show two different methods. (x+3)^2=6

Mathematics
1 answer:
enyata [817]4 years ago
4 0
I attached files.
 firstly, I used the factor method to solve the equation and then completing the square method

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Martinique an antwan had their bill at a restaurant reduced by $6 because of a special discount. They left a tip of $9.80,which
mafiozo [28]

Answer:

  $55

Step-by-step explanation:

Let b represent the original bill. The problem statement tells us ...

  20% × (b -6) = 9.80

Dividing by 20% gives ...

  b -6 = 49.00

  b = 55.00 . . . . . . . add 6

Their bill before the discount was $55.00.

___

<em>Comment on the tip</em>

It is generally considered better form to tip on the basis of the original bill before coupons and discounts.

4 0
4 years ago
You were given 12 math problems for homework. You completed 5/12 of them at school. Which equation shows how to find the fractio
gogolik [260]

Answer:

7/12

Imagine this:

you had a block set with 12 blocks in it

you built a tower with 5 blocks (5/12)

You have 7 blocks left (7/12)

5/12 + 7/12 = 12/12 = 1

6 0
3 years ago
Growth or decay help!!!!
Vsevolod [243]
If the antique's value increases over time, it must be growing (not decaying) in value.

We're told the value increases by 12.12%, which means that if the current value is x, then the value after 1 year is x+0.1212x=1.1212x. Each year, the value increases by the same factor, which means after 2 years, the value is 1.1212(1.1212x)=1.1212^2x; after 3 years, the value is 1.1212^3x; and so on.

Here x is the starting value of the antique. So the answer is the second choice.
5 0
4 years ago
How do i add 1 1/6+ 3/5
Ierofanga [76]
You would change the denominator and get the lowest common denominator. Thos would be 30. You would do 11/6 x 5/5 = 55/30. Then do 3/5 x 6/6 = 18/30. Then add 55/30 + 18/30 = 73/30 and simplify.
3 0
4 years ago
Read 2 more answers
Need help with question 4
8090 [49]

Step-by-step explanation:

it's option D (x³)

hope this helps you.

6 0
3 years ago
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