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adell [148]
3 years ago
13

Need help asap with A & B

Mathematics
1 answer:
qaws [65]3 years ago
7 0
The answer to letter A is 9/25. I'm not sure what letter B is, sorry. :/

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Help me hurry please
saul85 [17]

Answer:

28x + 8y + 2

Step-by-step explanation:

Combine like-terms within the parentheses, then distribute -2.

Hope this helps! :)

3 0
3 years ago
Read 2 more answers
One of the byproducts of nuclear power generation is Uranium-233. Uranium is decaying at a constant 57% rate per day. If 3,820 p
yanalaym [24]
Given that the decay rate of the uranium is given to be 57%, this means that on the second day only 43% of the Uranium-233 will be left. The equation therefore, that will allow us to answer the question is that,
                                   A(t) = A(0)(1 - r)^n
where A(t) is the amount after n days, A(0) is the original amount, r is the decimal equivalent of the rate and n is the number of days. Substituting the known values,
                                  A(t) = (3,820 pounds)*(1-0.57)^15
                                   A(t) = 0.0121 pounds
This is unfortunately not found in the choices. 
3 0
3 years ago
Read 2 more answers
Help
Novosadov [1.4K]
Well, you can actually tell it is D without solving it because it is the only one that has the x value as 3.  But just to be sure.

Plug in 3 for x into the equation:
3(3)-y=9 and solve for y
9-y=9 subtract 9 from both sides
-y=0 so y=0

so the value is (3,0)
4 0
3 years ago
If the width of a rectangle is represented by y than what is an algebraic expression that describes the length
lana66690 [7]
57-34x5-45-67x78x98 equals fifty nine
5 0
3 years ago
0.4x + 6.1, x= -5. (show work)
yan [13]

Answer:

<u>4.1 </u>

Step-by-step explanation:

0.4(-5)+6.1

0.4 times -5 is -2

-2 +6.1 = <u>4.1 </u>

3 0
3 years ago
Read 2 more answers
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