The work shows the first steps for writing a partial fraction decomposition. Which equations can be used in a system of equations to solve for the unknowns. Check all that apply.

A = 0
xxxB = 0
D = –5
A + C = 0
2A + 2B = 4
it's B C D the three in the middle

Partial fraction decomposition involves breaking down algebraic fractions into smaller piece.

The equations that can be used are:

  ,     and    

From the question. we have:

Collect like terms

Compare both sides, using the power of x

Divide both sides of by 2x^3

Divide both sides of by 2x^2

Divide both sides of by x

Substitute in

Hence, the equations that can be used are:

and

Read more about partial fraction decomposition at:

link

B C D

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!

i believe the answer is 323 ft

step-by-step explanation: