Keep cool: Following are prices, in dollars, of a random sample of ten 7.5-cubic-foot refrigerators. A consumer organization reports that the mean price of 7.5-cubic-foot refrigerators is greater than $295. Do the data provide convincing evidence of this claim? Use the =α0.05 level of significance and the P-value method with the TI-84 Plus calculator. 323 381 335 291 325 283 339 355 305 312

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.

y - 25 = 2 ( x - 10 ) should be the answer

a≈380.13mi² would be your answer if the radius was 11 miles