Answer:
a = 7, b = 
Step-by-step explanation:
Using the sine ratio in the left right triangle and the exact value
sin45° = 
, then
sin45° = 
= 
= ( cross- multiply )
a × 
= 7 ( divide both sides by )
a = 7
--------------------------------------------------------
Using the tangent ratio in the right triangle on the right and the exact value
tan60° = 
, then
tan60° = 
= 
= 
= ( multiply both sides by b )
b × = 7 ( divide both sides by )
b = 
× 
=
Answer:
i'd say c.) and e.)
Step-by-step explanation:
......
If the train can carry 78 people and it makess 99 trips,
the greatest number of people will be
78*99= 7722
Answer:d
Step-by-step explanation:
Answer: no solutions
Step-by-step explanation:
