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3 years ago

6

Element X decays radioactively with a half life of 13 minutes. If there are 830 grams of Element X, how long, to the nearest ten

th of a minute, would it take the element to decay to 20 grams?

1 answer:

Nonamiya [84]3 years ago

4 0

Answer:

26.92 min

if I'm not wrong!

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A convex polyhedron is made of 12 congruent faces like the one shown below. What is the name of the solid? A) dodecahedron ANSWE

Anvisha [2.4K]

Answer: dodecahedron

Step-by-step explanation:

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3 years ago

<img src="https://tex.z-dn.net/?f=3n%5E%7B2%7D%20-8n%2B4%5C%5C" id="TexFormula1" title="3n^{2} -8n+4\\" alt="3n^{2} -8n+4\\" ali

Yuki888 [10]

$Hello$ $There!$

Here's a explanation!

Factor:

$3n^2-8n+4$

$3n^2-8n+4$

$= (3n-2)(n-2)$

$ANSWER!$

$(3n-2(n-2)$

Hopefully, this helps you!

$AnimeVines$

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3 years ago

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I need help understanding complex zeros of a polynomial function. I've taken notes, I've watched videos, nothing helps. I'm lost

allsm [11]

Polynomials can have REAL ZEROS or COMPLEX ZEROS. Real Zeros to a polynomial are POINTS where the graph crosses the x-axis when y=0. When we graph each function, we can see these points. Complex Zeros are the SOLUTIONS of the equation that ARE NOT VISIBLE on the graph.

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3 years ago

List these fractions and decimals in order from least to greatest -3/8, 5/16, -0.65, 2/4 .

iren2701 [21]

1) -0.65
2) -3/8
3) 5/16
4) 2/4

3 0

3 years ago

Determine if the set of numbers create a Pythagorean triple. 2.1, 7.2, and 7.5

erik [133]

Answer:

Yes

Step-by-step explanation:

If the largest number squared is equal to the sum of the squares of the other 2 numbers, then Pythagorean triple

largest number = 7.5 and 7.5² = 56.25

2.1² + 7.2² = 4.41 + 51.84 = 56.26

Thus 2.1, 7.2 and 7.5 create a Pythagorean triple

7 0

3 years ago