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Sophie [7]
3 years ago
9

Can someone please help me with this question?

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0
Uh oh speggego's im telling teacher lol
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Algebra 2, I need help!!! Solve x^2 + 6x + 7 = 0. If you are going to comment in here please know the answer, this is so serious
docker41 [41]

Answer:

Third option

Step-by-step explanation:

We can't factor this so we need to use the quadratic formula which states that when ax² + bx + c = 0, x = (-b ± √(b² - 4ac)) / 2a. However, we notice that b (which is 6) is even, so we can use the special quadratic formula which states that when ax² + bx + c = 0 and b is even, x = (-b' ± √(b'² - ac)) / a where b' = b / 2. In this case, a = 1, b' = 3 and c = 7 so:

x = (-3 ± √(3² - 1 * 7)) / 1 = -3 ± √2

6 0
3 years ago
Which values are outliers ?
Minchanka [31]
5.8 0.8 5.9 6.1 and 10.9 are all correct answers.

Hope this Helped!

;D
:D
:)
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4 0
3 years ago
Read 2 more answers
A piece of stained glass in the shape of a right triangle has sides measuring 8 centimeters, 15 centimeters, and 17 centimeters.
Mashcka [7]

Answer:

60cm^2

Step-by-step explanation:

1. turn triangle into rectangle measuring 15x8

2. find area of rectangle (area = base*height): 8*15 = 120

3. Find area of triangle (divide rectangle area by 2): 120/2 = 60cm^2

3 0
3 years ago
Find the value of x (URGENT/GIVING BRAINLIEST)
Virty [35]

Answer:

x=25

Step-by-step explanation:

The angles 126 and (5x+1) are equal. The equation that is used is 5x+1=126.

To solve the equation, subtract 1 from both sides

5x+1-1=5x     126-1=125.

Simplify the equation. 5x=125

Divide both sides by 5.   5x/5=x     125/5=25

You would get x=25 eventually.

6 0
3 years ago
Which of the following sets of numbers could represent the three sides of a triangle?
kupik [55]

Answer:

B-7,22,28

Step-by-step explanation:

The sum of the smaller numbers must be greater than the larger number, if not then the answer is wrong.

6 0
2 years ago
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