Mathematics, 26.03.2020 00:56 Dashavu7165
If one lens increases the size of an image by $80\%$ and another increases the size by $50\%$ by what percent will the image be increased if the two lenses are used together?
Answers: 2
Mathematics, 22.06.2019 00:00
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
Answers: 3
Mathematics, 22.06.2019 00:50
Identify the statement below as either descriptive or inferential statistics. upper a certain website sold an average of 117 books per day last week. is the statement an example of descriptive or inferential statistics? a. it is an example of descriptive statistics because it uses a sample to make a claim about a population. b. it is an example of inferential statistics because it uses a sample to make a claim about a population. c. it is an example of inferential statistics because it summarizes the information in a sample. d. it is an example of descriptive statistics because it summarizes the information in a sample.
Answers: 1
Mathematics, 22.06.2019 04:10
Line ab contains points a(4, 5) and b(9.7). what is the slope of ab?
Answers: 2
Mathematics, 22.06.2019 04:30
If the figures below are similar give the scale factor of figure a to figure b
Answers: 3
If one lens increases the size of an image by $80\%$ and another increases the size by $50\%$ by wha...
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