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natali 33 [55]
3 years ago
10

Please Help!!!

Mathematics
1 answer:
iren2701 [21]3 years ago
6 0
This polynomial does not factor so you have to complete the square or use Quadratic formula.
x^2 + 6x + 7 = 0
Using completing the square, subtract 7 from both sides.
x^2 + 6x = -7
divide 6 by 2 = 3, square 3 = 9, add 9 to both sides.
x^2 + 6x + 9 = 2
(x + 3)^2 = 2
Take the sqrt of both sides
x + 3 =  + - sqrt 2
subtract 3 from both sides
x = - 3 + - sqrt 2
This is not an answer choice but it is the correct answer. You either typed the choices incorrectly or the equation incorrectly.
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A.) -7, -6, -3, -2, 0, 2, 6

B.) Jacob is correct, the larger the negative number, the lower the number is. So, since -11 is smaller than -7, it will be colder.

C.) Minneapolis is colder since -41 is way lower than -15.

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What is the answer to 5 1/2 - 2/3
aniked [119]

To solve this problem, we first have to convert 5 1/2 into an improper fraction. To do this, we multiply the unit (5) times the denominator (2) and then add the numerator (1) to the product, while still keeping the same denominator.


(5 * 2) + 1 = 10 + 1 = 11/2


Now, this makes our expression: 11/2 - 2/3


Next, we have to find a common denominator for 2 and 3 by finding their shared LCM, or least common multiple. In this case, the LCM is 6. This means that we are going to convert both of the fractions in the expression into fractions with the denominator 6, so that we can easily compute the subtraction.


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Hope this helps!



3 0
3 years ago
What is the slope of the line graphed below?
Dafna11 [192]

Answer:

-3

Step-by-step explanation:

slope (m) = (y2 - y1)/(x2 - x1)

(1, 1) --> 1 = x1, 1 = y1

(2, -2) --> 2 = x2, -2 = y2

(-2 - 1) / (2 - 1) = -3 / 1 = -3

therefore, the slope is -3

hope this helps <3

4 0
1 year ago
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