Please answer number 3 with step by step solution 1. The length of a rectangle is 2 m less than twice the width. If the area of therectangle is 112 m2, what is the width?A. 5 mB. 8 mC. 9 mD. 14 m3. The hypotenuse of right-angled triangle is 10 cm. The difference between its othertwo sides is 2 cm. Find the length of the sides.A. 5 cm and 7 cmB. 6 cm and 8 cmC. 6 cm and 12 cmD. 8 cm and 10 cm5. The sides of an equilateral triangle are shortened by 2 units, 3 units and 4 unitsrespectively and a right-angle triangle is formed. Find the length of each side ofthe equilateral triangle.A. 3 unitsB. 7 uniteC. 5 unitsD. 12 unitsJhondy throw an object upward from the top of a 300 ft. tallbuilding. The height of the object, (measured in feet) t secondsafter he threw it is hFor Question 7-4t2 + 40t + 300.7. Where is the object 5 seconds after Jhondy threw it?C. 1000 ft.D. 530 ft.A. 500 ft.B. 160 ft.9. John, Luke and Mark can finish painting the fence in 2 hours. If John does thejob alone, he can finish it in 5 hours. If Luke does the job alone, he can finish itin 6 hours. How long will it take for Mark to finish the job alone?5 hrsC. 3 hrs.

Answered: Image /qna-images/answer/7addeae4-dbd2-438f-ad74-790ca2763faf.jpg

3. The hypotenuse of right-angled triangle is 10 cm. The difference between its other two sides is 2 cm. Find the length of the sides. A. 5 cm and 7 cm B. 6 cm and 8 cm C. 6 cm and 12 cm D. 8 cm and 10 cm

3. The hypotenuse of right-angled triangle is 10 cm. The difference between its other two sides is 2 cm. Find the length of the sides. A. 5 cm and 7 cm B. 6 cm and 8 cm C. 6 cm and 12 cm D. 8 cm and 10 cm

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter9: Surfaces And Solids

Section9.4: Polyhedrons And Spheres

Problem 24E: A calendar is determined by using each of the 12 faces of a regular dodecahedron for one month of...

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Question

Please answer number 3 with step by step solution

1. The length of a rectangle is 2 m less than twice the width. If the area of the
rectangle is 112 m2, what is the width?
A. 5 m
B. 8 m
C. 9 m
D. 14 m
3. The hypotenuse of right-angled triangle is 10 cm. The difference between its other
two sides is 2 cm. Find the length of the sides.
A. 5 cm and 7 cm
B. 6 cm and 8 cm
C. 6 cm and 12 cm
D. 8 cm and 10 cm
5. The sides of an equilateral triangle are shortened by 2 units, 3 units and 4 units
respectively and a right-angle triangle is formed. Find the length of each side of
the equilateral triangle.
A. 3 units
B. 7 unite
C. 5 units
D. 12 units
Jhondy throw an object upward from the top of a 300 ft. tall
building. The height of the object, (measured in feet) t seconds
after he threw it is h
For Question 7
-4t2 + 40t + 300.
7. Where is the object 5 seconds after Jhondy threw it?
C. 1000 ft.
D. 530 ft.
A. 500 ft.
B. 160 ft.
9. John, Luke and Mark can finish painting the fence in 2 hours. If John does the
job alone, he can finish it in 5 hours. If Luke does the job alone, he can finish it
in 6 hours. How long will it take for Mark to finish the job alone?
5 hrs
C. 3 hrs.

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