Question

How do you do Q33, 34, 36 from this PRACTICE test (a test from 3 years ago)?
http://www.jmap.org/JMAPRegentsExamArchives/ALGEBRA2TRIGONOMETRYEXAMS/ExamAnswers/0612a2ans.pdf

Answer 1

33 is already spelled out for you, what is it you dont get?

Answer 2

34 is just finding width and height to find area with

Answer 3

36 is just a nightmare looking, but it simplifies when factored

Answer 4

For 33, where do I plug the number in?

Answer 5

you ahve a rule stated, what is your rule?

Answer 6

ak + 1 = 2ak - 1

Answer 7

thats a bit messy: now tell me what you think that rule tells us ...

Answer 8

what does a_{k+1} and a_{k} represent to us?

Answer 9

I have not a clue :/

Answer 10

then you havent done any studying about it. take a guess, you might surprize yourself ....

Answer 11

The term in the sequence?

Answer 12

we are given a term named a_{1} so the subscripts tell us about the terms i the sequnce yes

if k=1, what does k+1 mean?

Answer 13

2

Answer 14

good, and if k=21, what does k+1 give us?

Answer 15

22

Answer 16

good, so this simply tells us how one term relates to the one before it.

the next term, is simply the term before, doubled, and less by 1

Answer 17

we know a_{1}, what is a_{2} ?

a_{2} = 2a_{1} - 1

Answer 18

OHHHHH!!! Now I get it. Thank you!

Answer 19

:) good luck with that.

34 is just trig stuff, mostly memorized definitions to find a height

Answer 20

I'm probably too late at this point, but this might be still helpful. See attached.

Answer 21

we know a, we want to know h, and we have an angle to play with

what trig (its already given in the answer there) uses these sides for a ratio?

Answer 22

Sin (Opp/Hyp)

Answer 23

Area = bh

sin(angle) = h/a

h = a sin(angle)

therefore: Area = ab sin(angle)

Answer 24

and 36 is just an exercise in factoring to find common factors above and below the fraction bars.

Answer 25

Here are all the answers to your test i took this earlier have fun! :) And o got a 100% so its totallly worth copying off of :) here:
http://pages.citebite.com/a4o3b6r4a2tjy

Answer 26

D-> 8AAHHAHAHAHHA

Answer 27

D-> E%cept10nal. 10/10

Answer 28

@kidrah69 I wasn't asking for answers, rather an approach. I could care less about the answers. Knowledge is power, not answers...

Answer 29

Did you even click the link?

Answer 30

Yea. I don't appreciate sarcasm.

Answer 31

The answers are already given in the original file anyway.

Answer 32

Yeah i dont appreciate people asking test questions.

Answer 33

D-> Sarcasm 1s typ1cally humur0us. As 1t was 1n th1s case. 8AHAHA.

Answer 34

No helping on a test. Period.

Answer 35

This is actually my homework, not a test. This test is from 3 years ago.

Answer 36

So why is it being done now?

Answer 37

If you guys would actually look at when this test is from that'd be great. June 2012. It's 2015.

Answer 38

It's my homework to practice for an upcoming test in June.

Answer 39

We take ISAT's the years on those are screwed up too c: so its why we thought it was a test maybe change the name of your file.

Answer 40

D-> "Th1s test" 1s n0t the same as "an upc0m1ng test" 0r "a test 1'm currently tak1ng".