Question

evaluate if x= -10 and y=-3
-4y^2

Answer 1

144

Answer 2

Where is the x?

Answer 3

he has a series of exercises it is just one of them and in that one does not have a x on it

Answer 4

yup

Answer 5

its -144 or 144

Answer 6

-4 * -3 is 12

Answer 7

OK so substitute that value\[-4(-3)^{2}\]
-4(9)=-36

Answer 8

ok it 12 squared

Answer 9

i like radar answer better than mine

Answer 10

yes i think so

Answer 11

what about this one

Answer 12

which one?

Answer 13

-xy^3

Answer 14

what do you want to evaluate? x=?? y=???

Answer 15

i think both

Answer 16

right?

Answer 17

\[-xy ^{3}=-(-10)(-3)^{3}=-(-10)(-27)=-(270)=-270\]

Answer 18

was my assumption correct? or are the evaluators somethin other than -10 and -3?

Answer 19

there still the same

Answer 20

O.K. did you follow the solution from step to step?

Answer 21

yea i got it

Answer 22

Excellent, don't rush, be neat on your paper, and good luck.

Answer 23

x - y^3

Answer 24

\[x-y ^{3}=-10-(-3)^{3}=-10-(-27)=-10+27=17\]

Answer 25

your the best!!!!!!!

Answer 26

Order of operations require doing the exponents before adding or multiplying/dividing.

Answer 27

Good luck with it, take your time and do it step by step following the rules of order of operations. Also keep good track of signs (which is my weakness)