Question

HELP!

Answer 1

@jim_thompson5910

Answer 2

@jim_thompson5910

Answer 3

ok can you give me the first two steps like all the time..

Answer 4

@jim_thompson5910

Answer 5

a^2+b^2 = c^2
9^2 + 14^2 = x^2

solve for x

Answer 6

ok thanks!

Answer 7

a^2+b^2 = c^2
9^2 + 14^2 = x^2
81+196=x^2
277=x^2
x^2=277
sqrt (x^2)=sqrt(277)
x=16.6433

Answer 8

correct

Answer 9

that's the approx length of PR. Make sure to round it to two decimal places

Answer 10

ok so thats it? this is the complete answer?

The approximate length of PR:
a^2+b^2 = c^2
9^2 + 14^2 = x^2
81+196=x^2
277=x^2
x^2=277
sqrt (x^2)=sqrt(277)
x=16.6433

Answer 11

whats 16.6433 rounded to two decimal places? 16.64?

Answer 12

well it says to round it to the nearest hundredth..

Answer 13

`whats 16.6433 rounded to two decimal places? 16.64?`
correct

Answer 14

`well it says to round it to the nearest hundredth..`
yes that's the same as saying "round to 2 decimal places"

Answer 15

ok!!! so is this the final answer?

The approximate length of PR:
a^2+b^2 = c^2
9^2 + 14^2 = x^2
81+196=x^2
277=x^2
x^2=277
sqrt (x^2)=sqrt(277)
x=16.6433
16.6433 rounded to the nearest hundredth is 16.64.

Answer 16

that just takes care of part A

Answer 17

make sure you include the name of the theorem you used

Answer 18

oh really? we arent done?

Answer 19

ohhhh!!! lol we arent done.. i didnt see there was a part b! whoopsies!

Answer 20

did we use the pythagorean theorem for part a?

Answer 21

`did we use the pythagorean theorem for part a?`
yes

Answer 22

ok!
now lets move on to part b!

Answer 23

PR is now 18 ft
PQ stays at 14 ft
the question they want us to find out: how long is QR?

Answer 24

I want you to try to set up the equation

Answer 25

ok so the first two steps are???

Answer 26

what's the longest side here?

Answer 27

a^2+b^2 = c^2
18^2+14^2=c^2
is that correct so i can start solving?

Answer 28

no, keep in mind that c is the longest side

c = 18 is the longest side
a = 14 is one of the legs
b = y is unknown

Answer 29

a^2+b^2 = c^2
14^2+y^2 = 18^2

Answer 30

hopefully it makes sense how I set up the equation?

Answer 31

oohhh yes i get it no!!!

Answer 32

@jim_thompson5910

Answer 33

let me solve now!

Answer 34

alright, take your time

Answer 35

a^2+b^2 = c^2
14^2+y^2 = 18^2
196+y^2=324
y2=324−196
y^2=128
y=11.3137

Answer 36

very good

Answer 37

thank you !

Answer 38

don't forget to round this answer

Answer 39

ok so this is the complete answer for part b?

The approximate length of QR is:
a^2+b^2 = c^2
14^2+y^2 = 18^2
196+y^2=324
y2=324−196
y^2=128
y=11.3137
11.3137 rounded to the nearest hundredth is 11.31.

Answer 40

yes it is

Answer 41

im not missing anything ? :)

Answer 42

nope

Answer 43

yay!

Answer 44

well actually, I would throw in the step sqrt(y^2) = sqrt(128)

other than that, it looks good

Answer 45

ok!