Answer:
-616
Step-by-step explanation:
First subtract 35 with 21 since 35 is a negative. then subtract 45 with 1
for the first parenthesis would be -14. the second parenthesis would be 44.
then multiply both of the answers together to get -616
I think he 2nd one because u add unlike together and get 5 and you put - in front of the 9
Answer:
Distance of the keys on ground from the base of the tower = 7.38 ft
Step-by-step explanation:
Given:
Height of tower = 94 ft
Tower is leaning and makes an angle of 85.5 degrees from the ground.
Keys are dropped from the top of the tower.
To find the distance of the keys on ground from the base of the tower.
From the data given to us we can construct a right triangle ABC.
For the Δ ABC
AB= 94 ft
∠A= 85.5°
We can apply trigonometric ratio to find side BC which is the distance of the keys on ground from the base of the tower.
Using cosine ratio: 
In Δ ABC

Multiplying both sides by AB.



Substituting value of AB and cos 85.5°

∴ 
Distance of the keys on ground from the base of the tower = 7.38 ft
You have the correct answer checked already. B
Answer:
The answer for this question would be maybe D-
SORRY IF I'M WRONG