Formula for an is 3n - 11
Step-by-step explanation:
- Step 1: Equation for a(n) = a + (n - 1)d where a = - 8, d = common difference = a2 - a1 = -5 - -8 = 3
⇒ a(n) = -8 + (n - 1)3 = - 8 + 3n - 3 = 3n - 11
Answer: Yes, the highest side would be F
Answer:
![cos(\theta)=(+/-)0.84](https://tex.z-dn.net/?f=cos%28%5Ctheta%29%3D%28%2B%2F-%290.84)
Step-by-step explanation:
we know that
----> by trigonometric identity
we have
![sin(\theta)=0.55](https://tex.z-dn.net/?f=sin%28%5Ctheta%29%3D0.55)
substitute
![(0.55)^2+cos^2(\theta)=1](https://tex.z-dn.net/?f=%280.55%29%5E2%2Bcos%5E2%28%5Ctheta%29%3D1)
![cos^2(\theta)=1-(0.55)^2](https://tex.z-dn.net/?f=cos%5E2%28%5Ctheta%29%3D1-%280.55%29%5E2)
![cos^2(\theta)=0.6975](https://tex.z-dn.net/?f=cos%5E2%28%5Ctheta%29%3D0.6975)
![cos(\theta)=(+/-)\sqrt{0.6975}](https://tex.z-dn.net/?f=cos%28%5Ctheta%29%3D%28%2B%2F-%29%5Csqrt%7B0.6975%7D)
![cos(\theta)=(+/-)0.84](https://tex.z-dn.net/?f=cos%28%5Ctheta%29%3D%28%2B%2F-%290.84)
Remember that
If the sine of angle theta is positive, then the angle theta lie on the I Quadrant or II Quadrant
therefore
If the angle theta is on the I Quadrant the cosine will be positive
If the angle theta is on the II Quadrant the cosine will be negative
Answer:
Step-by-step explanation:
Since she buys lunch for 15 days you do 12.35 times 15 which is $185.25
Number of members = 13
Total investment = $24,689.55
Since they have equal shares, dividing the total investment with number of members gives shares value per member.
That is
Value of shares per member = $24,689.55/13 = $1,899.20