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Mademuasel [1]
2 years ago
13

Half life can be used to solve for the amount (A) of a substance left after t time by using the following equation:

Mathematics
2 answers:
Annette [7]2 years ago
7 0

Answer: Its C

Step-by-step explanation:

KengaRu [80]2 years ago
3 0
Answer is in the link below
Anwerkilk.com
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Solve the quadratic by factoring.<br> x^2-5x-31=5
torisob [31]

Answer:

x =  - 4\: or \: x =  9

Step-by-step explanation:

make one side equal to zero:

{x}^{2}  - 5x - 36 = 0

find two factors that multiply to -36 and add to -5 (-9 & 4)

{x }^{2}  - 9x + 4x - 36 = 0

factorise

x(x - 9) + 4(x - 9) = 0

(x + 4)(x - 9) = 0

solve for x

x =  - 4 \: or \: x = 9

5 0
3 years ago
Sophie takes tap and ballet.
Oksanka [162]
1 1/4 hours. When you add them that’s what you get.
4 0
3 years ago
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Olenka [21]

Answer:

I would say NO

Step-by-step explanation:

because if you look at those triangles, the one on they have two matching angles and two one side. The other angle in the triangle on the left isn't marked or anything so we can assume and the one on the right has no marked side. I hope I made a little sense. I don't know how to explain but I guess in short you could say that you don't have enough information to determine if they're the same

AGAIN!! I CAN'T PROMISE IF THIS IS RIGHT!!

7 0
3 years ago
A 16 ounce box of cereal cost $3.04 , what is the unit cost ?
Black_prince [1.1K]

Answer:

$.19 per ounce

Step-by-step explanation:

Take the price and divide by the number of ounces

3.04 dollars/ 16 ounces

.19 dollars per ounce

5 0
3 years ago
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What would the graph of the solution to the following inequality look like?
yan [13]

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6 0
2 years ago
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