3 years ago

You have 192 grams of a radioactive kind of iodine. How much will be left

Mathematics

1 answer:

m_a_m_a [10]3 years ago

8 0

Answer:

192/2= 96 g after 7h

96/2=48 g after 14h

48/2= 24 g after 21h

<h2>24/2= 12 g after 28h </h2>

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Olenka [21]

Answer:

Step-by-step explanation:

When a variable does not have a visible coeffecient then the coefficient is 1. (Double check to make sure I'm correct)

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3 years ago

What are the zero(s) of the function f(x)=<img src="https://tex.z-dn.net/?f=%5Cfrac%7B4x%5E%7B2%7D-36x%20%7D%7Bx-9%7D" id="TexFo

Contact [7]

Answer:

Step-by-step explanation:

The function will be zero when the numerator is equal to 0. So, set the numerator equal to 0 and solve:

$0 = 4 {x}^{2} - 36x$

I will use the quadratic formula:

$\frac{ 36 + \sqrt{ {36}^{2} - 4(4)(0)} }{2(4)} \\ \frac{ 36 + 36}{8} = 9$

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Therefore, the answer is D.

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3 years ago

For the function, tell whether the graph opens up or opens down, identify the vertex, and tell whether the graph is wider, narro

lord [1]

Answer:

The answer is D, the last one.

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3 years ago

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Find each missing length, make sure you give both exact AND approximate. Brainliest + 50pts

goldenfox [79]

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B²=176
B=13.26(exact)
B=13.3(approx)

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B=15.49(exact)
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2 years ago

What is 5 wholes - 2 fifths

padilas [110]

5 wholes = 5
2 fifths = 2/5

5 - 2/5 = 4 3/5 (4 and 3 fifths)

Answer = 4 3/5

Check work:
4 3/5 + 2/5 = 5 (wholes)

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3 years ago

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