I need help please! I'm stumped and I don't know what to do.

Here,

3y-49=0(i)

x^2+y^2-281=0(ii)

from eqn (i)

y=49/3

Now,substituting value of y in eqn (ii)

x^2+(49/3)^2-281=0

or,x^2+2401/9-281=0

or,9x^2+2401-2529=9×0

or,9x^2=128

or,x^2=128/9

therefore,

x=8√2/3

Hope it helps...

312312

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!