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Leona [35]
3 years ago
5

Simplify. 1/2−3(1/2+1)^2

Mathematics
2 answers:
DIA [1.3K]3 years ago
7 0

Answer:

-6.25

Step-by-step explanation:

otez555 [7]3 years ago
4 0

The answer is -6.25.

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Tak purchased 478 pounds of brown sugar. Each pound of the sugar equals 214 cups. What is the best estimate of the number of cup
kherson [118]
The answer is 17, I am not positive but I believe that is the answer
3 0
3 years ago
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Iodine-125 has a half-life of about 60 days. How many milligrams of a 1000mg sample will remain after 240 days?
Bezzdna [24]

62.5 mg sample will remain after 240 days

Step-by-step explanation:

Given

Half-life = T =  60 days

The formula for calculating the quantity after n half lives is given by:

N = N_0(\frac{1}{2})^n

Here

N is the final amount

N_0 is the initial amount

n is the number of half lives passed

The number of half lives are calculated by dividing the time for which the remaining quantity has to be found by half life

The quantity has to be calculated for 240 days so,

n = \frac{240}{60}\\n = 4

Given

N_0 = 1000\ mg

Putting the values in the formula

N = 1000 (\frac{1}{2})^4\\=1000 * \frac{1}{16}\\=\frac{1000}{16}\\=62.5\ mg

Hence,

62.5 mg sample will remain after 240 days

Keywords: Half-life, sample

Learn more about half-life at:

  • brainly.com/question/11286417
  • brainly.com/question/12973601

#LearnwithBrainly

4 0
4 years ago
Subtract 1/4w + 4 from 1/2w + 3
solniwko [45]
The answer is 1/4w - 1
7 0
3 years ago
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U guys are mean and never answer my questions, like i paid for no one to answer my question
Sav [38]

Answer:

Step-by-step explanation:

You have no grounds for making a statement like that.  There are a variety of reasons why you might not get immediate answers.  Be patient.

I will do the second part of this question (finding the first three numbers):

a(4) = a(3)*(-3) + 2 = -148, so a(3)*(-3) = -150 and a(3) = -50

a(3) = 50

a(2) = a(3)*(-3) + 2 = 50, so -3*a(3) = 48 and a(d) = -16

a(1) = a(2)*(-3) + 2 = -16, so a(2)*(-3) = -18 and a(1) = 6

The procedure for finding a(5), a(6) and a(7) is exactly the same.

3 0
3 years ago
Which geometric solids would model the tent?
solniwko [45]
Triangular prism and rectangular prism
6 0
2 years ago
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