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madam [21]
2 years ago
6

Use the quadratic formula to solve x^2-6x=-7. Show your work. Then describe the solution.

Mathematics
1 answer:
s2008m [1.1K]2 years ago
5 0

Answer: The solutions are x = 3+sqrt(2), and x = 3-sqrt(2). The quadratic equation has two solutions because it has a positive discriminant.

Step-by-step explanation:

Using the quadratic formula, we have: 6+-sqrt(8)/2, which become 3+-sqrt(2).

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Pls i need an answer now ​
Elena-2011 [213]

Answer:

Step-by-step explanation:

1. 5, 3.5, \sqrt{9\\}, -\frac{12}{5}, -7

2. 10, π ,3.1415, 0, -10

3. 1\frac{1}{2}, 1.44, 1.4(3), 1.(43), \frac{7}{5}

6 0
2 years ago
A man travelled 3/8 of his journey by a rail 1/4 by a taxi 1/8 by and the remaining 2km on foot what is the length of his total
Burka [1]
The man travelled in different ways: by rail, by taxi, by ___ and by foot. I placed a blank there because there seems to be a missing word in the given problem above. For sample purposes, let's just assume that is travel by bus.

Since all of these travels are equal to 1 whole journey, you can express each travel as a fraction. When you add them up, the answer would be 1. So,

3/8 + 1/4 + 1/8 + x = 1

The variable x here denotes the fraction of his travel by foot. We are only given the exact distance travelled on foot which is 2 km. We have to find the fraction of the travel by foot to determine the length of the total distance travelled. Solving for x,

x = 1 - 3/8 - 1/4 - 1/8
x = 1/4

That means that the travel by foot comprises 1/4 of the whole journey. Thus,

Let total distance be D.

1.4*D = 2 km
D = 8 km

Therefore, the man travelled a total of 8 kilometers.
4 0
3 years ago
a report in a newspaper or magazine, or on the Internet that uses results from a survey. Evaluate how the survey uses ratios to
gavmur [86]

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5 0
3 years ago
The functions f and g are defined by these sets if input and output values.
erastovalidia [21]
(x,y)
x=input
y=output
example
we see
g=(1,2)
theefor
g(1)=2


a.
f(4)=1
g(1)=2
g(f(4))=2

b.
g(-2)=4
f(4)=1
f(g(-2))=1

c.
f(3)=5
g(5)=5
f(5)=0
f(g(f(3)))=0
5 0
3 years ago
PLEASE HELPPP MEEEEEEEEEEEEEEEEEEE I’M DESPERATE PLEASE SOMEONE IT IS AN EMERGENCY!!!!!!!!!!!!!!!!!!!!!!!!!
N76 [4]

There are two expressions

Price of video games: 4(25) = $100

Sale tax: 0.06(100) = $6

Total: $100 + $6 = $106

6 0
3 years ago
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