Help me with this math test please
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Answers: 3
Mathematics, 21.06.2019 22:30
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by รขโ4 to get รขโ16x รขโ 4y = รขโ80 multiply the second equation by รขโ1 to get รขโ4x รขโ y = รขโ20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by รขโ1 to get รขโ2x รขโ 4y = รขโ14
Answers: 1
Mathematics, 22.06.2019 02:30
The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.
Answers: 3
Mathematics, 22.06.2019 03:20
What is the volume of a cardboard box that measures 1 inch by 5 inches by 7 inches? the volume of the cardboard is cubic inches. enter your answer as the number that correctly fills in the blank in the previous sentence. if necessary, round your answer to the nearest tenth, like this: 42.5
Answers: 1
Mathematics, 22.06.2019 03:30
The diameter of a bacteria colony that doubles every hour is represented by the graph below. what is the diameter of the bacteria after 8 hours? graph of a curve passing through the points zero comma 1, one comma two, two comma four, and three comma eight
Answers: 1
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