310000982
28.07.2019 •
Mathematics
The doorway in julie's house is 80 inches tall, and the angle that the diagonal makes with the side of the doorway is 35° as shown in the diagram. julie has a table top that is 8 feet long. she wants to know if she can move it through the door by leaning it to fit through the door diagonally. what is the length of the diagonal of julie's doorway to the nearest tenth of an inch?
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Ответ:
cos θ=adjacent/hypotenuse
θ=35°
hypotenuse=h
adjacent=80 inches=6.66667 ft
thus;
cos 35=6.66667/h
h=6.66667/cos35
h=8.1385 ft
diagonal=8.1385 ft
we conclude that the table will through the door diagonally.
Ответ:
Step-by-step explanation:
Use cos(adjacent/Hypotenuse) convert 80 inches by dividing by 12 feet. You get 6.6667 then ➗by cos 35 answer 8.13 rounded
Ответ:
468.75=15x
x=31.25
she will have to work 31.25 hours in order to earn the same amount of money