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55.9 Sive a system of eations using sure
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Write a system of equations to describe the situation below, sove using subscbeton, and
in the blanks
Mrs. McLean is researching what it would cost to order power arrangements for a laro ay
She wants one large centerpiece for the heat tzde, and smale arrangements for tre smale
tzdies, Belleville Fors: charges 57 for och smaller anzugeret, plus 544 for de ange
centerpiece. Verds Fowers, in contrast, charges $40 for the large etterpiece and e r
arrangement for the res Mirs. Meen orders a certain number of small anangements, ste
cost fill be the same at ether fowershor. What would the total cost be2 How many small
arrangements world that be

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

The weibull distribution is widely used in statistical problems relating to aging of solid insulating materials subjected to aging and stress. use this distribution as a model for time (in hours) to failure of solid insulating specimens subjected to ac voltage. the values of the parameters depend on the voltage and temperature; suppose α = 2.5 and β = 190. (a) what is the probability that a specimen's lifetime is at most 250? less than 250? more than 300? (round your answers to four decimal places.) at most 250 less than 250 more than 300 (b) what is the probability that a specimen's lifetime is between 100 and 250? (round your answer to four decimal places.) (c) what value is such that exactly 50% of all specimens have lifetimes exceeding that value? (round your answer to three decimal places.) hr

To start to solve the system of equations below, which number would you multiply in the equation -2x-5y=-1? the two equations are -2x-5y=-1 and 4x+2y=8