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busn230-00d statistics fall 2019 instructor sandra boyer
blanca salazar
1 12/1/19 10: 46 pm
homework: m13: ch. 10 homework
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4 of 4 (3 complete)
score: 0 of 3 pts
x 10.1.4-t
hw score: 60%, 6 of 10 pts
pe question
assume that you have a sample of n with the sample mean x, 41, and a sample standard deviation of s, -4, and you have an independent sample of my from another population with a sample mean of
x2 - 36, and the sample standard deviation s2 8. construct a 99% confidence interval estimate of the population mean difference between and 12. assume that the two population variances are equal
shi-h2u
(round to two decimal places as needed.)
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nowing

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

it's possible to build a triangle with side lengths of 3, 3, and 9.- true ( b.)