Geography, 22.01.2020 04:31, rogersdeloris1ovgm3b
Selena and drake are evaluating the expression (startfraction r s superscript negative 2 baseline over r squared s superscript negative 3 baseline endfraction) superscript negative 1, when r = negative 1 and s = negative 2. selena’s work drake’s work (startfraction r s superscript negative 2 baseline over r squared s superscript negative 3 baseline endfraction) superscript negative 1 baseline = (r superscript negative 1 baseline s) superscript negative 1 baseline = startfraction r over s endfraction = startfraction negative 1 over negative 2 endfraction = one-half (startfraction (negative 1) (negative 2) superscript negative 2 baseline over (negative 1) squared (negative 2) superscript negative 3 endfraction) superscript negative 1 = (startfraction (negative 1) (negative 2) cubed over (negative 1) squared (negative 2) squared endfraction) superscript negative 1 = (startfraction negative 8 over 4 endfraction) superscript negative 1 baseline = startfraction 4 over negative 8 endfraction = negative one-half who is correct and why? selena is incorrect because she should have substituted the values for the variables first, and then simplifed. selena is correct because she simplified correctly and then evaluated correctly after substituting the values for the variables. drake is incorrect because he should have simplified first, before substituting the values for the variables. drake is correct because he substituted the values for the variables first, and simplified correctly.
Answers: 1
Geography, 22.06.2019 17:00, lasdivisionst6459
Plants in the tundra biomes have had to adapt to live long periods of time without a. cool temperatures b. sunlight c. oxygen d. water
Answers: 1
Geography, 23.06.2019 08:30, jlong2043
When geographers describe how two places are related to each other spatially, they are describing a. where the places are located in relation to one another b. what kinds of natural environments are around each place c. how each place is changing over time d. what kinds of cultures are in each place
Answers: 1
Selena and drake are evaluating the expression (startfraction r s superscript negative 2 baseline ov...
Biology, 01.09.2019 13:00
Mathematics, 01.09.2019 13:00
Mathematics, 01.09.2019 13:00
History, 01.09.2019 13:00