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ratelena [41]
2 years ago
8

Solve the following quadratic equation by rearranging and then factorising x^2 + 7x + 19 = 9

Mathematics
2 answers:
IRISSAK [1]2 years ago
6 0

Answer:

x = -5   & x = -2

Step-by-step explanation:

x^2 + 7x +10 = 0  you takeaway 9 as quadratic equations have to equal 0

(x+5)(x+2) = 0    you find 2 numbers that go into 10 that add to make 7 and multiply to make 10

(x+5) = 0 so x =-5     &   (x+2) = 0 so x =-2

wolverine [178]2 years ago
5 0

Answer:

your lucky you did have a online lessons earlll

Step-by-step explanation:

The following are the temperatures in °C for the first 14 days of January:

-6, -2.5, 2, 2.5, -0.5, 5, 10, -3, -7, 3, -1, 7, 1, 4.5

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mariarad [96]

Answer:

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Step-by-step explanation:

4 0
3 years ago
What is the sum of 3/7, 4/5, and 2/3 rounded to two decimal places
bagirrra123 [75]
Hello!!

Total = 3/7 + 4/5 + 2/3

         = 0.428571429 + 0.8 + 0.66666667

         = 199/105
 
         = 1.89524.....

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Good luck :)
3 0
3 years ago
The Walking Club is one of the after-school activities at Jefferson Middle School.
saveliy_v [14]

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I wish this helps. :)

4 0
3 years ago
Which undefined geometric term is described as a location on a coordinate plane that is designated by an ordered pair, (x, y)?
jeka94
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4 0
3 years ago
Read 2 more answers
Use the unit circle to find the inverse function value in degrees.<br> tan^-1 sqrt 3
mr Goodwill [35]
Use the unit circle to find the inverse function value in degrees.tan^-1 sqrt 3

The correct answer would be 60 degrees. Since you are asked to find an angle that the tangent is equal to sqrt 3. The only angle that is equal to that given the interval is 60 degrees. So that is the correct answer. I hope this answer helped you. 
7 0
3 years ago
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