A research study measured the sounds generated during eating tortilla chips. Peak loudness was measured (in decibels at 20 cm away) for both open-mouth and closed-mouth chewing. A sample size of 10 chips was used for each trial. For open-mouth chewing the mean peak loudness was 60 decibels with a standard deviation of 15 decibels. For closed-mouth chewing the mean peak loudness was 53 decibels with a standard deviation of 16 decibels. Is there evidence that there is a difference (open-closed) in mean peak loudness for open and closed mouth chewing of tortilla chips? (

something that characterises a right triangle is the fact that we may use pythagoras' theorem to find any one of its sides given that we have the length of the other two sides. here, we have the length of the hypotenuse, √(87) yd, and one other side, √(23) yd, thus we can easily find the length of the remaining side using pythagoras' theorem as defined below:

c^2 = a^2 + b^2, where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

thus, given that c = √(87) and a = √(23), we may substitute these into the formula we defined above to get:

c^2 = a^2 + b^2

(√87)^2 = (√23)^2 + b^2 (substitute c = √87 and a = √23 into the equation)

87 = 23 + b^2 (evaluate (√87)^2 = 87 and (√23)^2 = 23 - remember that the square root of a number, squared will equal that very same number)

64 = b^2 (subtract 23 from both sides)

√64 = b (take the square root of both sides)

8 = b (evaluate √64 = 8)

therefor, the length of the unknown leg in the right triangle is 8 yd (first answer).

idk

step-by-step explanation:

i don't know

john got lost so he didn't know what to do and it was crazy because he didn't except it

step-by-step explanation:

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