Question

Select all of the following expressions that are equal to 2.5.

5 ÷ 2
-2(-1.25)
(-0.5)2
|-1 + (-1.5)|

Answer 1

5 / 2 = 2.5

Answer 2

thats a right?

Answer 3

-2 x -1.25 = 2.50

and yes

Answer 4

okay so a and b

Answer 5

-0.5 x 2 = 1.0

Answer 6

not c

Answer 7

and can u solve d? i dont want to give u all the answers


ps: it = to 2.5-i want u to find out how i got there

Answer 8

negatives are canceled right?

Answer 9

do u know what \[\left| these \right|\] mean?

Answer 10

its means it cancels the negatives right

Answer 11

not quite - they mean the absolute value of something. do u know what an absolute value is?

Answer 12

like the first 1 right? not the 1 in 1.5

Answer 13

not quite right either - an absolute value is the distance away from 0. so if an ENTIRE problem is in \[\left| these \right|\],then it doesnt matter if it is negative or positive. it will be positive ALWAYS if the ENTIRE problem is in the symbol


do u understand do far?

Answer 14

yea

Answer 15

ok. so solve for inside the symbols. in this case the ENTIRE problem r in the symbols, so u can ignore the - and positive signs





































i put emphasis on "entire" bc if the ENTIRE problem is not in the symbols, the rules r different

Answer 16

okay

Answer 17

so d is one bacause that equaks 2.5

Answer 18

*equals

Answer 19

yes

Answer 20

anymore?

Answer 21

yup

Answer 22

how many?

Answer 23

i have no clue over like 200

Answer 24

*mouthdropped

Answer 25

for what class?

Answer 26

i have a whole semester too make up and thats not including science

Answer 27

whole semester from what?

Answer 28

algebra 1 and physics

Answer 29

and i may b able to help w science

Answer 30

the whole 6 weeks thing

Answer 31

what school?

Answer 32

*mouth dropped in unbelievement

Answer 33

regulare high school

Answer 34

?

Answer 35

online?

Answer 36

no just plain old high schooll but i am makeing up online

Answer 37

oh. how did u fall behind?

Answer 38

its complicated

Answer 39

lol ok

Answer 40

srry 4 drillin u

Answer 41

next ?

Answer 42

im getting it

Answer 43

i just dont like talking about it

Answer 44

oh ok. srry. and when i said next ? , i meant next question. i just abbreviate things

Answer 45

oh yea im getting it i just have to type out the fractions

Answer 46

cant u just copy and paste?

Answer 47

yea but it doesnt take fractions with it

Answer 48

it just puts it in a/b form