2. a) Rearrange the formula A =¬(a + b)h to isolate b. 8 cm. b) Use the rearranged formula to find b if A = 28 cm2, a = 6 cm, and h = c) To find b, substitute the values from part b) into the original formula (without rearranging first). d) Which method should Tarrik use if he finds it difficult to manipulate formulas? Explain e) Which method should Keisha use if she must solve several similar problems? Explain.

2. a) Rearrange the formula A =¬(a + b)h to isolate b. 8 cm. b) Use the rearranged formula to find b if A = 28 cm2, a = 6 cm, and h = c) To find b, substitute the values from part b) into the original formula (without rearranging first). d) Which method should Tarrik use if he finds it difficult to manipulate formulas? Explain e) Which method should Keisha use if she must solve several similar problems? Explain.

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

Section9.3: Cylinders And Cones

Problem 44E: In Exercises 44 and 45, use the formula from Exercise 43. Similar triangles were used to find h and...

See similar textbooks

Similar questions

In Exercises 44 and 45, use the formula from Exercise 43. Similar triangles were used to find h and H. A margarine tub has the shape of a frustum of a cone. With the lower base having diameter length 11 cm and the upper base having diameter length 14 cm, the volume of such a container 623 cm tall can be determine by using H=3223 cm, h=26 cm. Find its volume. A frustum of a cone is the portion of the cone bounded between the circular base and a plane parallel to the base. With dimensions are indicated, show that the volume of the frustum of the cone is V=13R2H13rh2
A rectangular solid has length L=12.6 mm, width W=23.8 mm, and height H=32.5 mm. Find the length of a diagonal AB from the upper left rear vertex to the lower right front vertex. Round the answer to 1 decimal place.
Generalize the results found in Exercise 11 and 12 by answering each of the following questions. Assume that the number of sides in each base of the prism is n. For the prism, what is the a number of vertices? b number of lateral edges? c number of base edges? d total of base of edges? e number of lateral faces? f number of bases? g total number of faces?
Four sets of equally spaced holes are shown in the machined plate in Figure 13-4. Determine dimensions A, B, C, and D to 2 decimal places. All dimensions are in millimeters. A=_B=_C=_D=_
A calendar is determined by using each of the 12 faces of a regular dodecahedron for one month of the year. With each side of the regular pentagonal face measuring 4cm, the area of each face is approximately 27.5 cm2. a What is the total surface area of the calendar? b If the material used to construct the calendar costs 0.8 of a cent per square centimeter, what is the cost of the materials used in construction?