<span>2n-n-4+7n in simplest form is found by combining like terms:
(2-1+7)n - 4 = 8n-4, or 4(2n-1)</span>
If a(n) = (39n^4 -506n^3 + 2341n^2 - 4610n + 3416) / 8 then
<span>a(1) = 85 </span>
<span>a(2) = 17 </span>
<span>a(3) = 19 </span>
<span>a(4) = 4 </span>
<span>a(5) = 2</span>
Answer: C.) 1.12 seconds
Step-by-step explanation:
Hi, to answer this question we have to substitute h=0 (when the rock hits the ground the height above it is 0) in the equation given:
h (t) = –16t2 + 20
Solving for t (time)
0= –16t2 + 20
16t2=20
t2=20/16
t=√1.25 =1.12 seconds (option C)
Feel free to ask for more if needed or if you did not understand something.
Answer:
Step-by-step explanation:
We are given a ΔKLM, in which KL=LM=13 in and KM=10 in which means two sides of the given triangle are same and thus is an isosceles triangle.
Its median drawn from L to the KM will be altitude. Therefore, ΔKLN and ΔLMN are right triangles.
In ΔKLN, using the pythagoras property, we have
Now, Area of triangle= 1/2×base×height
=1/2×10×12
=60 squared inches.
