<h3>The answer to your question is k (-3) = 21!</h3>
Here's how I got this answer:
<em><u>K(a) = 2a^2 - a </u></em>
<em><u>K(a) = 2a^2 - a K(-3) = 2(-3)^2 - (-3)</u></em>
<em><u>K(a) = 2a^2 - a K(-3) = 2(-3)^2 - (-3)K(-3) = 2(9) + 3</u></em>
<em><u>K(a) = 2a^2 - a K(-3) = 2(-3)^2 - (-3)K(-3) = 2(9) + 3K (-3) = 18 + 3</u></em>
<em><u>K(a) = 2a^2 - a K(-3) = 2(-3)^2 - (-3)K(-3) = 2(9) + 3K (-3) = 18 + 3K (-3) = 21</u></em>
I hope this helps!
Also sorry for the late answer, I just got the notification that you replied to my comment, I hope I came in time!
ANSWER
EXPLANATION
The given equation is
We divide through by 4 to obtain;
This can again be written as:
This is the equation of a circle centered at the origin with radius 4 units.
The graph is shown in the attachment.
Answer:
...................................
Step-by-step explanation:...................................
Let
T = theta
Use the Law of Cosines to get
c^2 = a^2+b^2 - 2ab*cos(T)
<span>7^2 = 10^2+8^2 - 2*10*8*cos(T)
</span><span>49 = 164 - 160*cos(T)
-160cos(T) = 49-164
</span><span>-160cos(T) = -115
</span>cos(T) = -115/(-160)
cos(T) = 23/32
cos(T) = 0.71875 which rounds to 0.72
The final answer is C) 0.72
Step-by-step explanation:
first do the triangle : 11 times 6 divided by 2 equals
33
the formula for a triangle is base times height divided by 2
now multiply 33 x 2 = 66because there is another triangle at the back.
now do 6 x 8 to find the sides that equal to 48
do 48 x 2 because there are 2 sides
now do the base : 11x8 = 88
for final step add all the answers together
66 + 48 + 88 answer is =
202
PLEASE MARK BRAINLIEST I PUT IN ALOT OF TIME FOR This
Hope it helps :)
