The rigid beam is supported by the three suspenderbars. Bars AB and EF are made of aluminum and bar CD ismade of steel. If each bar has a cross-sectional area of 450 mm 2 ,determine the maximum value of P if the allowable stress is(s allow ) st = 200 MPa for the steel and (s allow ) al = 150 MPa forthe aluminum. E st = 200 GPa, E al = 70 GPa

a straight line sloped

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

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