Mathematics, 31.01.2020 02:50 madskate9993

The height of the scaffold can be changed by adjusting two slanting rods, one of which, labeled pr, is shown: a support structure is shown in which a right triangle pqr is formed with the right angle at q. the length of pq is shown as 14 feet, and the length of qr is shown as 6 feet.. part a: what is the approximate length of rod pr? round your answer to the nearest hundredth. explain how you found your answer, stating the theorem you used. show all your work. part b: the length of rod pr is adjusted to 16 feet. if width pq remains the same, what is the approximate new height qr of the scaffold? round your answer to the nearest hundredth. show all your work. 12 !

Answers: 2

Show answers

Answers

Answer from: jboii11

Triangle PQR is a right triangle therefore you can use the pythagorean theorem to find the length of PR which is the same as the hypothenuse

Theorem:
(QP)² + (QR)² = (PR)²

(6)² + (14)² = 232 ⇒ (PR)² = 232 then PR = √232 = 15.23

If PR is adjusted to 16 feet then we use the Pythagorean theorem again to find the height QR

(QR)² + (14)² = (16)²

(QR)² = 256 - 196 = 60 ⇒ QR = √60 = 7.75.

Answer from: kordejah348

Answer from: Destine1965

a. 15.23

b. 7.75

Step-by-step explanation:

(6)² + (14)² = 232 = (PR)² = 232 PR = √232 = 15.23

(QR)² = 256 - 196 = 60 = QR = √60 = 7.75

Answer from: bri1334

a. 15.23

b. 7.75

Step-by-step explanation:

(6)² + (14)² = 232 = (PR)² = 232 PR = √232 = 15.23

(QR)² = 256 - 196 = 60 = QR = √60 = 7.75

Answer from: Quest

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation:

Answer from: Quest

Hold on lemme do the work

Another question on Mathematics

Mathematics, 21.06.2019 22:00

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

Answers: 1

Answer

Mathematics, 21.06.2019 22:30

How can constraints be used to model a real-world situation?

Answers: 1

Answer

Mathematics, 21.06.2019 23:00

Multiplying fractions by whole number 5 x 1/3=?

Answers: 2

Answer

Mathematics, 21.06.2019 23:00

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer