In the figure below, find the interior height (h) of the obtuse triangle. Show all work. Homework Help ✎
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Question 1
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In the diagram at right, ⊙M has radius 14 feet and ⊙A has radius 8 feet. Line ER is tangent to both ⊙M and ⊙A. If NC=17 feet, find ER. Homework Help ✎
Use the sectors in circles D and E to answer the following questions. Homework Help ✎
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Question 2
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What is the ratio of the arc length to the radius of circle D? Leave your answer in terms of π.
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Question 3
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What is the ratio of the arc length to the radius of circle E?
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Question 4
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The ratio of the arc length to the radius of a circle is called a radian. Why do you think all sectors with a central angle of º30º have the same radian measure?
Question 6
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A cylinder with volume 500π cm^3 is similar to a smaller cylinder. If the scale factor is 15 what is the volume of the smaller cylinder? Explain your reasoning. Homework Help ✎
A six-year old house, now worth $175,000, has had an annual appreciation of 5%. Homework Help ✎
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Question 7
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What is the multiplier?
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Question 8
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What did it cost when new? Round to the nearest dollar.
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Question 9
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Write a function of the form f(t)=ab^t, where t is the time in years, that represents the value of the house since it was new.
In the figure at right, line EX is tangent to ⊙O at point X. OE=20 cm and XE=15 cm. Homework Help ✎
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Question 10
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What is the area of the circle?
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Question 11
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What is the area of the sector bounded by OX and ON?
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Question 12
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Find the area of the region bounded by XE, NE, and \overset\frown{NX}.
Question 13
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Multiple Choice: In the circle below, CD is a diameter. If AE=10 , CE=4 , and AB=16 , what is the radius of the circle? Homework Help ✎