Mathematics, 08.11.2019 19:31 moneybaggzay123
For a new product, you need to determine the average diameter of a specialized electronic component, which will be a critical component of the new product. you measure the diameter in a sample of size 15 and find an average diameter of 0.24 mm, with a standard deviation of 0.02 mm. other studies indicate that the diameter of similar products is normally distributed. the 99% confidence interval for the average diameter of this electronic component is
0.232 to 0.248
0.230 to 0.250
0.228 to 0.252
0.26 to 0.254
0.224 to 0.256
Answers: 2
Mathematics, 21.06.2019 13:40, wowwowumbsi
In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.
Answers: 3
Mathematics, 21.06.2019 16:30, leenzazou98241
The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year. how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.
Answers: 1
Mathematics, 21.06.2019 16:30, mildredelizam
Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?
Answers: 3
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