In order to keep a malfunctioning satellite from falling into the earth, space agency officials decide to use a powerful rocket. At the time the rocket is attached, the satellite will be traveling
with an initial velocity, vo, and for every second that the rocket fires, it will add approximately
m
180 meters per second to this velocity. In order to ensure safety on earth, the velocity
m
must be increased to at least 3.800 Also, the rocket can fire for no more than 4 seconds.
S
For the initial velocity of the satellite, Vo, which of the following systems of inequalities best
models this situation, where t is time, in seconds, after the rocket is first fired?

An ecosystem is shown in the illustration. assume that human activities have led to a decrease in the number of eagles. a virus attack on rabbits has led to a decrease in their population in the ecosystem. which two sentences describe likely effects on the ecosystem? 1. there’s an increase in the number of snakes and insects and a decrease in the number of frogs. 2. there’s an increase in the number of snakes and insects, and the storks face increased competition for food. 3. there’s an increase in the number of storks and a decrease in the number of snakes and insects. 4. there’s an increase in the number of frogs and a decrease in the number of storks and insects. 5. there’s a decrease in the number of snakes, insects, and frogs.

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Dan runs a busy desktop-publishing company. his company want to increase its exposure, so it runs a new a new promotion each week. the tool dan most likely choses to publicize this is a promotion is a