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Fill in the blanks to express the quantities given in ratio language. Ratios must be

expressed in simplest form.

Number of Students in Each Grade:

.

SE

Grade

Students

6th Grade

7th Grade

8th Grade

42

For every

students in 8th Grade, there are

students in 6th Grade.

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attempt 1 out of 2

How many glue sticks are in a basket containing 96 scissors, if the ratio of glue sticks to scissors is 19 to 57.

What is the perimeter of an equilateral triangle if each side is (x+3)?

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