x = 
subtract 4x from both sides of the equation
6x - 4x - 2 = 13
2x - 2 = 13
add 2 to both sides
2x = 13 + 2 = 15
divide both sides by 2
x =
Answer:
1/81
Step-by-step explanation:
P(H,H,H,H)=16/81
fourth root of 16/81= 2/3
so the probability of getting tails would be 1/3
probability of getting 4 tails would be:
P(T,T,T,T)=(1/3)^4
=1/81
Answer:
4.5
Step-by-step explanation:
B(0,-9)
C(-2,-5)
=> BC = 
Answer:
25 friends
Step-by-step explanation:
85 - 10 = 75
75/3 = 25
Answer check:
25*3 = 75
75 + 10 = 85
DeShawn has 25 friends. (Wow, DeShawn must be popular)
hello :<span>
<span>the parabola's equation is : f(x) = a(x-h)²+k
the verex is (h,k)
</span></span><span>line of symmetry x = h
</span><span>The minimum or maximum value is : k
</span>a possible equation of this parabola is : f(x) = a(x+5)²-7
