lekylawhite16

25.01.2021 • 

Mathematics

Jamie rode her bike home for 5 blocks before realizing she forgot her math book at school and would need it for her homework. She rode back to school, found her math book, and then rode home. Which graph best represents the scenario described? (4 points) A. A coordinate plane graph is shown. The axis is labeled time and the y-axis is labeled distance from home in blocks. A line begins at 0 comma 0, increases to 5 comma 5, decreases to 8 comma 0 and stays horizontal to 12 comma 0. The line increases to 16 comma 9.

B. A coordinate plane graph is shown. The x-axis is labeled time and the y-axis is labeled distance from home in blocks. A line begins at 0 comma 9, decreases to 5 comma 4, increases to 9 comma 9 and stays horizontal to 13 comma 9. The line decreases to 17 comma 0.

C. A coordinate plane graph is shown. The axis is labeled time and the y-axis is labeled distance from home in blocks. A line begins at 0 comma 8, decreases to 5 comma 5, decreases again to 8 comma 3, then stays horizontal to 12 comma 3. The line decreases to 17 comma 0.

D. A coordinate plane graph is shown. The axis is labeled time and the y-axis is labeled distance from home in blocks. A line begins at 0 comma 8, decreases to 5 comma 5, stays horizontal to 8 comma 5, then increases to 12 comma 8. The line decreases to 17 comma 0.

Ответ:

DangeRz

18.06.2020

Mathematics

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Step-by-step explanation:

C = 147 ft.  The relevant formula is C = 2(pi)r, and here C = 147 ft = 2(pi)r.

The relevant area formula is A = (pi)r^2.  If we solve the above formula for r we get

         147 ft

  r =    and so  r^2 (needed to calculate the area) is

           2pi

          147^2 ft^2

r^2 =

                4(pi)

                                      147^2 ft^2

and so the area is  A = = 7203/pi

                                           3 pi

                                                                    C                           C^2

Alternative method:  C = 2pi*r so r = and r^2 =

                                                                 2 pi                           4pi^2

                                                                               C^2             C^2

then the area of the circle is A = pi(r^2) or pi* =

                                                                             4pi^2               4pi

                                                                        (147 ft)^2

and in this case the area of the circle is A =

                                                                              4 pi

or A = 1720 ft^2

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