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svetlana [45]
2 years ago
10

Atraeus is solving the quadratic equation by completing the square.

Mathematics
2 answers:
LuckyWell [14K]2 years ago
8 0
I think the value of a I think the answer is b
e-lub [12.9K]2 years ago
5 0

Answer:

A = 7

Step-by-step explanation:

7x² - 14x + 6 = 0 ( subtract 6 from both sides )

7x² - 14x = - 6 ← factor out 7 from each term on the left side

7(x² - 2x) = - 6

then A = 7

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Just answer number 7 and 8
melamori03 [73]
We are given the equation:
F = 2.25+0.2(m-1)
where:
F is the fare
m is the number of miles.

In question 7, we are given that the fare (F) is equal to $6.05 and we need to get the number of miles. To do so, we will simply substitute with the fare in the given equation and solve for the number of miles (m) as follows:
F = 2.25 + 0.2(m-1)
6.05 = 2.25 + 0.2(m-1)
6.05-2.25 = 0.2(m-1)
3.8 = 0.2(m-1)
3.8/0.2 = m-1
19 = m-1
m = 19+1
m = 20 miles

Number 8 is exactly the same, but we will substitute F=7.65 and again solve for m
4 0
3 years ago
In august the simons water bill was $48.in September it was 15% lower . What was the simons water bill in September
slega [8]
Water bill of Simons in the month of August = $48
Percentage of bill that was lower in the month of September = 15%
then
Amount of bill that was lower in the month of September = (15/100) * 48
                                                                                           = 720/100 dollars
                                                                                           = 7.2 dollars
So
The bill for the month of September = (48 - 7.2) dollars
                                                          = 40.8 dollars
So Simon will have to pay $40.8 as the water bill for the month of September. I hope the procedure is clear enough for you to understand.
3 0
3 years ago
Read 2 more answers
I’m new to this app!<br> And i really need help..<br> PLEASE HELP!!!!!
aalyn [17]

Step-by-step explanation:

a) x^2 - 5x + 4 = (x - 1)(x - 4)

b) x^2 - 10x + 9 = (x - 1)(x - 9)

c) x^2 - 16x + 64 = (x - 8)^2

8 0
2 years ago
the expression 12g gives the number of kilometers a car can travel using g liters of gasoline how far can this car travel on 5 1
dmitriy555 [2]
The answer is 66 kilometers.

Start with the given expression: 12g where 'g' standts for the liters of gasoline.

Input your data and solve: 12 * 5.5 = 66
3 0
3 years ago
Two lines intersect. Find the values of b and c.
Mandarinka [93]

Step-by-step explanation:

I think b is 42 as well cause there are vertically opposite

ummm ....and c is (180- 42 because they are adjacent angles)

therefore b=42

c= 138

that is what I yhink sorry if it ain't the right answer

3 0
2 years ago
Read 2 more answers
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