Answer:
8(r+2)
hope this helps
have a good day :)
Step-by-step explanation:
Ok first of all you would have to put 41/4 as a mixed number. Secondly it would be 4 10.25/100. Then you have to subtract that by 3/4
d/2=r, r=1
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v=(1/3)hpir^2
V=(1/3)9pi1^2=3pi=9.42 cubic inches, so then times 2 for cost to get 18.84 dollars
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Step-by-step explanation:
law of sine :
a/sinA = b/sinB = c/sinC
with the sides and correlating angles being always opposite to each other.
we are dealing with a right-angled triangle here.
the train track is the Hypotenuse (the side opposite of the 90° angle) : 1600 ft.
the horizontal level "connection" from beginning to the end of the track is one leg, and the elevation difference at the end of the track is the second leg.
the 2 legs enclose a 90° angle, as the elevation goes straight up from the horizontal level.
so, we have
1600/sin(90) = elevation difference / sin(1.6)
sin(90) = 1
1600 = elevation difference / sin(1.6)
elevation difference = 1600 × sin(1.6) =
= 1600 × 0.027921639... =
= 44.67462196... ft
≈ 44.7 ft
Answer:
Step-by-step explanation:
we have
Remember that
and
substitute
