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ExtremeBDS [4]
3 years ago
9

PLEASE HELP 7TH GRADE MATH!!!!

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0

Answer:

Step-by-step explanation:

3. the answer should be -68

5.-8.97

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The half-life of uranium-238 is 4.5x10^9 years. The half-life of uranium-234 is 2.5x10^5 years. How many times greater is the ha
lara31 [8.8K]

<u>Answer:</u>

Half-life of uranium-238 18 \times 10^{3} \text { times greater } that of uranium-234

<u>Explanation:</u>

Half time of uranium-238 = 4.5\times 10^9  years

Half time of Uranium-234 = 2.5\times 10^5 years

To find how much times greater the half life of uranium-238 is from uranium-234

= \frac{\text { Half life of Uranium-238 }}{\text { Half time of Uranium - 234 }}

=\frac{4.5 \times 10^{9}}{2.5 \times 10^{5}}

=18 \times 10^{3} \text { times greater }

Hence Uranium-238 is  18 \times 10^{3} \text { times greater } than Uranium-234

4 0
4 years ago
I need help it's 10th grade (sophomore) geometry
PIT_PIT [208]

Answer:

1. 27

2. 1 and 2 = 17

3. 55

4. 55

5. 70

6. 125

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8. 95

9. 140

10. 40

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Step-by-step explanation:

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The following chart shows a store's records of sales of stuffed toys over two months.
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Answer:

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Step-by-step explanation:

|3x + 12| = 24

3x + 12 = 24 or -(3x + 12) = 24

       3x = 12 or -3x - 12 = 24

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4 years ago
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