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astraxan [27]
3 years ago
5

I need help fast will give brainliest!!!

Mathematics
1 answer:
givi [52]3 years ago
6 0

Answer:

C and D

Step-by-step explanation:

the answers are C and D.

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Evaluate for x=2 and y=3: x^2y^-3/x^-1y
Artemon [7]

Answer:

8/81

Step-by-step explanation:

It's most efficient to simplify the quotient algebraically before inserting the values of the variables x and y.  

The given expression reduces to x³ / y^4.

Substituting 2 for x and 3 for y, we get:

 (2)³           8

--------- = ---------- (Agrees with first given possible answer)

 (3)^4         81

4 0
3 years ago
Need help use screenshot(SAT Prep) In △ABC, AB = BC = 20 and DE ≈ 9.28. Approximate BD. bd equals?
Lilit [14]

Answer:

5.36

Step-by-step explanation:

Given that:

<BAD = <CAE, therefore, BD = EC

Let's take x to be the length of BD = EC

BD + DE + EC = BC

BC = 20,

BD = EC = x

DE ≈ 9.28

Thus,

x + 9.28 + x = 20

x + x + 9.28 = 20

2x + 9.28 = 20

Subtract 9.28 from both sides

2x + 9.28 - 9.28 = 20 - 9.28

2x = 10.72

Divided both sides by 2 to solve for x

\frac{2x}{2} = \frac{10.72}{2}

x = \frac{10.72}{2}

x = 5.36

BD ≈ 5.36

4 0
3 years ago
Marco has $38.43 dollars in his checking account. His checking account is linked to his amazon music account so he can buy music
Mumz [18]

Step-by-step explanation:

38.43 - 1.29x

Variable x represents the number of songs purchased

Not sure why this question didn't save the answer I just wrote (I'm new to the app)

5 0
2 years ago
Math IXL Help!!!!! Quick!!!!! Plzzzzzzzz!!!!!
Oksanka [162]

Answer:

Y=7 X=1

Step-by-step explanation:

if need an explanation please ask

7 0
2 years ago
Use the data in the table to write a multiplication story for the number fact. Solve 2x6=
Afina-wow [57]
6*2=12.
You have not included a table so I assume this is the answer you want.
4 0
2 years ago
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