Answer:
x = 1.47 or x = -7.47
Step-by-step explanation:
x²+6x+9=20
This is a quadratic equation
x²+6x+9-20=0
x²+6x-11=0
Step 1 : Write the quadratic formula
x = <u>-b±√b²-4(a)(c)</u>
2a
Step 2 : Substitute values in the formula
a = 1
b = 6
c = -11
x = <u>-6±√6²-4(1)(-11)</u>
2(1)
x = <u>-6±√80</u>
2
x = -3 + 2√5 or x = -3 - 2√5
x = 1.47 or x = -7.47
!!
Answer:
Step-by-step explanation:
To find the slope of the equation use 
.
So, 
= 
. Now we can use our slope and any of the two points to write in point-slope form, which is 
. Using the point (7,-6), the formula will give .
To check, you can plug in this equation and the points into a calculator to graph. The line passes through both points.
Answer:
Again! Option D is the answer!
Please mark my answer as the brainliest since I have you the answer so quickly!
(A) a triangle whose angles each measure less than 90°
