1)
csc Ф=hypotenuse / opposite=15/9=5/3
<span>
Answer: csc Ф=5/3</span>
2)
answer: the side CT is the hypotenuse because it is in front of the right angle.
3)
cotan Ф=adjacent/ opposite=12/9=4/3
answer: cotan Ф=4/3
4)
sin (-360º)=sin (0º+(-1)(360º)=sin 0º=0
Answer: sin (-360)=0
5)
cos (-90º)= cos (90º)=0=0
answer: cos (-90º)=0
Answer:
z = 5/2y -1
Step-by-step explanation:
We observe that z has ...
- 1 added
- the sum multiplied by 2/5
To solve for z, we undo these operations in reverse order.
Answer:
3:7
Step-by-step explanation:
18/6(largest factor)=3
42/6(largest factor)=7
Answer:
599/711
Step-by-step explanation:
Band Sports Debate Total
Male 105 320 7 432
Female 105 160 14 279
Total 210 480 21 711
P(female or plays sports)
We want the probability that they are female or play sports, but we cannot double count the female sports players, so we subtract them
P(female) + P (sports) - (female and sports)
female/total + sports/total - female sports/ total
279/711 + 480/711 - 160/711
599/711
