Question

Can someone help me out on this math question? Please

Answer 1

Any ideas?

Answer 2

see any pattern ? between first column and second column elements ?

Answer 3

-6

Answer 4

OpenStudy values the Learning process - not the ‘Give you an answer’ process
Don’t post only answers - guide the asker to a solution.

Answer 5

-6 is incorrect i think.
first lets see if we can figure out the pattern

Answer 6

Well, first.. they're all negative

Answer 7

these are my options.

Answer 8

yes, good observation.
look at the first row

-15 -30

Answer 9

clearly -30 is twice of -15

-30 = 2 times (-15)

Answer 10

look at second row... and other rows and convince urself if the pattern sticks

Answer 11

Oh I see! 15 plus 15 is 30, 4 plus 4 is 8, 10 and 10 is 20

Answer 12

that's the pattern?

Answer 13

Yup ! you have very good eyes :)

Answer 14

we can write

15 plus 15

as

2 times 15

Answer 15

so the pattern is

range = 2 times domain

Answer 16

or if u prefer,

range = domain + domain

Answer 17

-8 = -4 + -4

-20 = -10 + -10

-4 = -2 + -2

? = -3 + -3

Answer 18

So it is -6! I understand.

Answer 19

Yay! Thanks so much!

Answer 20

Yes, nice :)