Step-by-step explanation:
y = -x² + 5
x = -2
y=-(-2)²+5
y= -4+5
y=1
the sequence is 25/4(4/5)^x
plug in 10 for x to get your solution:
25/4(4/5)^10=4^9/5^8
It's C.) and btw, L=10 and s=20
Hope this helps! :)
Answer:
1) 
2) 
3) 
4) 
Step-by-step explanation:
1) Since the whole angle is 
, and to find the other angle, which is labeled as 
, you subtract 
from :
2) Since you already have two angle measures 
and 
, you add them up and subtract it from to get the angle measure for :
3) Same thing from number 1. Subtract 
from :
4) Same thing from number 2. Add 
and and subtract it from :
Answer:
missing side: 133 cm
Explanation:
Provided <u>2 length sides</u> and <u>one angle</u> also need to find <u>one missing side</u>.
So, use cosine rule:
⇒ a² = b² + c² - 2bc cos(A)
<u>Insert values</u>
⇒ g² = 166² + 147² - 2(166)(147) cos(50)
⇒ g² = 17794.3935
⇒ g = √17794.3935
⇒ g = 133.3956
⇒ g = 133 (rounded to nearest whole number)
