Answer:
D. 9.5
Step-by-step explanation:
x is the altitude of the right triangle.
Thus, we would apply the right triangle altitude theorem, which is:
h = √(ab)
Where,
h = x
a = 7
b = 13
Plug in the values
x = √(7*13)
x = √91
x = 9.5 units (nearest tenth)
C= 1
(x+1)(x+1)= x^2+2x+1
making it a perfect square
Answer:
Step-by-step explanation:
I suggest you watch a video about completing the square if you're not sure what I'm doing.
1.
x^2+2x-3=0
(x^2+2x+1)-3-1=0
(x+1)^2-4=0
Hope this helped,
JoeLouis2
P(n,r)= n! /(n-r)!
<span>C(n,r)= n! / r! (n-r)! </span>
<span>P^c(n,r)= P raised to power C(n.r)? (If so, you know C(n,r) ; raise P to power C(n,r)) </span>
<span>P(A/B) = P(A ∩ B) / P(B)
Hope this helped :)</span>