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Natalka [10]
3 years ago
5

An old bone contains 80% of its original carbon-

Mathematics
2 answers:
dedylja [7]3 years ago
6 0

Answer:

D

Step-by-step explanation:

answer on edge

Murljashka [212]3 years ago
3 0

Answer: EDGEN

C is the correct answer not D

0.8 for the second one

than B for the third

Step-by-step explanation:

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What two numbers multiply to 50 but add up to 5
vichka [17]
I assume the question is multiply to -50 and add to +5... If so, the answer is +10 and -5. 10 (-5) = -50 .... and 10 + (-5) = +5
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3 years ago
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katrin2010 [14]

Answer:

I think it might be 3 and 8 because I used the dots and used the number that connects to it with out an un even line I'm not sure if this will make sense or if it is correct but I'm just trying to help. dont listen to me unless you think it's the right answer.

3 0
3 years ago
The expression (secx + tanx)2 is the same as _____.
Pie
(secx + tanx)^2
<span>secxsecx + secxtanx + secxtanx + tanxtanx
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The expression (secx + tanx)2 is the same as </span>1 + 2tan2x + 2secx tanx. The answer is letter D.
3 0
3 years ago
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Write an equation of the line that passed through the point (6,-3) and has a slope of -2
tamaranim1 [39]
Hope this helps, please tell if wrong !

4 0
3 years ago
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grin007 [14]

Answer: 200 units²

Step-by-step explanation:

The length at the bottom is 10 and all sides of the 15x15 square are all 15, therefore the bottom length is 25. This is because the shape consists of all squares, so the sides are all equal.

This means the area of the entire rectangle is 25x25=625 units².

The bottom left corner triangle is 10x10=100 units².

The bottom right corner triangle is 15x15=225 units².

The whole diagram is symmetrical due to it having squares (which are regular and all sides are equal), we can assume the square at the top right is also 10x10=100 units².

All that remains is to find the shaded region, by taking away the rest of the area of the squares from the total area.

225+100+100= 425 units²

625-425= 200 units²

4 0
3 years ago
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