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ruslelena [56]
3 years ago
7

Please help me with this, I'd really appreciate it :)

Mathematics
2 answers:
WARRIOR [948]3 years ago
8 0
∠DCB = 128° and ∠ECD = 52°
dexar [7]3 years ago
5 0
I found this question on google and it says that ∠DCB = 128° and ∠ECD = 52° is the answer, its been approved by 5 different people as right :-)
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Anybody know how to work on decay rate? I'll give brainliest. THIS IS DUE SOON SO PLEASE HELP
artcher [175]

Answer:

28%

Step-by-step explanation:

In the function the .72 means that each unit of time 72% of the value is retained. This means that 28% percent of the value is lost or decays because 1-0.72=0.28 or 28 percent.

3 0
3 years ago
Which expression represents the prime factorization of 108?
ankoles [38]

Answer:

2×2×3×3×3

Step-by-step explanation:

●108=

•2×54

•2×27

•3×9

• 3×3

Writing the prime numbers;

108=2×2×3×3×3

4 0
2 years ago
Help i need clean and clear answers<br> thanks
Phoenix [80]
-6x+8 I thinkz thtats the correct answer
8 0
3 years ago
A hospital prepares a 100mg supply of technetium-99m which has a half-life of 6 hours. what is the decay factor?
SashulF [63]
For a half- life, the formula is
A(t) = A0(0.5)^( t / t_0.5)
where A(t) is the amount of substance at time t
A0 is the initial amount of subtance
t_0.5 is the time it will reduce its amount to half
t is the time

substitute the given to the formula
A(t) = 100(0.5)^( t/6 )
so the decay factor is 0.5^( t/6 )
6 0
3 years ago
X + y = 3<br><br> 2x + 2y = 6
STALIN [3.7K]

Answer:

x = Infinite answers.

y = Infinite answers.

Step-by-step explanation:

x + y = 3

2x + 2y = 6

2x + 2y = 6

2x + 2y = 6

=> Therefore, x and y have infinite values that can fit the equation.

Hoped this helped.

4 0
2 years ago
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