Claim: A of adults would erase all of their personal information online if they could. A software firm survey of randomly selected adults showed that ​% of them would erase all of their personal information online if they could. Complete parts​ (a) and​ (b) below. a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information.
▼
▼
nothing
​(Type an integer or a decimal. Do not​ round.)
b. Identify the null and alternative hypotheses.
​:
▼
p
sigma
mu
▼
equals
not equals
greater than
less than
nothing
​:
▼
mu
sigma
p
▼
not equals
less than
equals
greater than
nothing

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

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.

answer: 100

step-by-step explanation: