Mathematics, 20.07.2020 02:01 ttkkbffl
Many ancient tombs were cut from limestone rock that contained uranium. Since most such tombs are not well-ventilated, they may contain radon gas. In one study, the radon levels in a sample of 1212 tombs in a particular region were measured in becquerels per cubic meter left parenthesis Bq divided by m cubed right parenthesisBq/m3. For this data, assume that x overbarxequals=3 comma 6853,685 Bq divided by m cubedBq/m3 and sequals=1 comma 1041,104 Bq divided by m cubedBq/m3. Use this information to estimate, with 9595% confidence, the true mean level of radon exposure in tombs in the region. Interpret the resulting interval.
Answers: 2
Mathematics, 21.06.2019 18:30
The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39
Answers: 2
Mathematics, 21.06.2019 18:30
For each polynomial, determine the degree and write the polynomial in descending order. a. โ4x^2 โ 12 + 11x^4 b. 2x^5 + 14 โ 3x^4 + 7x + 3x^3
Answers: 2
Mathematics, 21.06.2019 21:10
Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. โ 6 โ
โ 2 2. ? 3. mโ 6 = mโ 2 3. def. of congruent 4. โ 6 is supp. to โ 8 4. def. of linear pair 5. โ 2 is supp. to โ 8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem
Answers: 3
Many ancient tombs were cut from limestone rock that contained uranium. Since most such tombs are no...
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