Answer:
P(n,4)÷P(n,2)
= (n-2)(n-3)
20 = 4 × 5 (two consecutive numbers)
(n-2)(n-3)=5×4
n-2=5
n=7
Answer:
Step-by-step explanation:
-3(x-4)=2x+4x+5
distribute -3 into (x-4)
-3x+12=2x+4x+5
combine like terms
-3x+12=6x+5
subtract 6x on both sides
-3x-6x+12=5
combine like terms again
-9x+12=5
subtract 12 on both sides
-9x=-7
divide both sides with -9
x=
hope this helps
The answer is (D).
AAA method is used to prove two triangles are similar. Since we are given that the two triangles have the same angles, but we don't know anything about their side lengths, we can't conclude that they are congruent (they could be similar).
Therefore, Kris is incorrect.
Answer:
Domain: t≥0
Range:h(t) ≤ 0.85
Step-by-step explanation:
The domain of a function is all the valid values you can enter into the function. Because time can't be negative the domain is t>0. The range or h(t) is the result, because the object can't go through the ground, it can't be less than zero. 0≤h(t)
0≤-4.87t^2+18.75t
0≤-4.87t+18.75
-18.75≤-4.87t
which is approx.: 0.85≥t or t≤0.85
Number 7; (x,y) —> (y,-x)
