First you add250+250 then you add 9+9 or you could do250×9 2 times then add them together . never mind just do 250×9 2times and that will eqaul 2,250 then add 2250+ 2250and you got the answer and the answer is 4500
Answer:
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Step-by-step explanation:
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Answer:
b
Step-by-step explanation:
b
Answer:
The top of the escalator is 10 ft from the ground floor
Step-by-step explanation:
we know that
The function sine of angle of 39.81 degrees is equal to divide the opposite side to the angle of 39.81 degrees (distance of the top of the escalator from the ground floor) by the hypotenuse (15.5 ft)
so
Let
h ------> distance of the top of the escalator from the ground floor
sin(39.81°)=h/15.5
h=(15.5)sin(39.81°)=9.9 ft
Round to the nearest foot
h=10 ft