Question

I need help with Question 34,24,59,60,25,30,31,27,28,46,47,48,52,53.

Please explain how you arrived at the answer to.
Thank You!

http://www.eduweb.vic.gov.au/edulibrary/public/commrel/aboutschool/selectentry/mathspractice.pdf LINK

Answer 1

are those the questions numbers?

Answer 2

Yes

Answer 3

for 34)
you have two points: (0,4) and (6,-1)
can u compute the slope?

Answer 4

What do you mean. You can do anything to arrive at the answer I suppose.

Answer 5

Can you skip to Question 25, I am most puzzled about that on. Apparently, Pythagorean theorem is involved.

Answer 6

YES!
the idea is work on the triangle AEG.
apply pythagoras to compute EG first

Answer 7

What happens after I worked out EG which is 10?

Answer 8

now apply pythagoras again you have EG=10, AE=2 from the triangle AEG

Answer 9

Its a bit confusing. Can you please explain?

Answer 10

OK.
you have a reactangle box wich means that all angles between the sides are 90º
right?

Answer 11

Yes

Answer 12

now imagine you draw two lines: AG and EG
the question is now what kind of triangle is AEG?

Answer 13

Ok, what else? Thank you, I really appreciate this, this question I just am really stuck on! What's next? The next step?

Answer 14

what kind of triangle is AEG?

Answer 15

I don't know?

Answer 16

what do u think is the measure of the angle between AE and the bottom of the box?
the bottom of the box is the square EFGH.

Answer 17

90^o?

Answer 18

yes.
if a triangle has one angle =90º, what is its name?

Answer 19

for #24 \(x\) is the hypotenuse of a triangle where one side is \(5-3=2\) and the other side is 4
pythagoras give the hypotenuse as
\[\sqrt{2^2+4^2}=\sqrt{20}=2\sqrt{5}\]

Answer 20

The answer is A = 2/26 the answers say

Answer 21

59 is pythagoras again
solve
\[(x+1)^2+(x+3)^2=(x+5)^2\]
\[x^2+2x+1+x^2+6x+9=x^2+10x+25\]
\[2x^2+8x+10=x^2+10x+25\]
\[x^2-2x-15=0\]

Answer 22

T

Answer 23

yes u r right!

Answer 24

Thanks everyone!

Answer 25

you get
\[(x-5)(x+3)=0\] so \(x=5\)

Answer 26

Thanks!

Answer 27

yw