Answer:
x = 1 + sqrt(89) or x = 1 - sqrt(89)
Step-by-step explanation:
Solve for x:
(x - 9) (x + 7) = 25
Expand out terms of the left hand side:
x^2 - 2 x - 63 = 25
Add 63 to both sides:
x^2 - 2 x = 88
Add 1 to both sides:
x^2 - 2 x + 1 = 89
Write the left hand side as a square:
(x - 1)^2 = 89
Take the square root of both sides:
x - 1 = sqrt(89) or x - 1 = -sqrt(89)
Add 1 to both sides:
x = 1 + sqrt(89) or x - 1 = -sqrt(89)
Add 1 to both sides:
Answer: x = 1 + sqrt(89) or x = 1 - sqrt(89)
I just plotted a similar thing for a kite; too much work here. Plot it yourself -- they give you the points.
We'll classify J(2,3), K(10,4), L(6,10) without a figure.
We calculate side vectors, slopes and squared distances
JK=K-J=(8,1), slope 1/8, JK²=8²+1²=65
KL=L-K=(-4,6), slope 6/-4=-3/2, KL²=(-4)²+6² = 52
LJ=J-L=(-4,-7), slope -7/-4=7/4, LJ²=(-4)²+(-7)²=16+49=65
The squared distances match so we have two congruent sides, JK≅JL
The sides are all about the same length so we can be sure it's an acute triangle, three acute angles.
Answer: acute isosceles triangle
Answer:
11/5 slope
Step-by-step explanation:
5-(-6) -4-(-9)
11/ 5
I think A but I’m not so sure I hope this helps
53 is the answer to your question
