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Marat540 [252]
3 years ago
14

Multiply 31.009 × 0.58

Mathematics
2 answers:
Temka [501]3 years ago
8 0
Your answer here is 17.99
qaws [65]3 years ago
3 0
17.98522 is the correct answer hope i helped please mark brainliest
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Please answer this question now
fenix001 [56]

Answer:

44 degrees

Step-by-step explanation:

Since MN is a tangent, it forms a right angle wheng it intersects line MP since MP is the diameter. So, 90+46 is 136 and since there are 180 degrees in a traingle, 180-136 is 44.

Hope this is helpful! :)

6 0
3 years ago
Read 2 more answers
One container of Tums® costs 4.00 dollars. Each container has eighty 1.00 g tablets. Assume each Tums® is 40.0 percent CaCO₃ by
Anna007 [38]

Answer:

The total cost is 1.25 dollars.

Step-by-step explanation:      

The reaction between HCl and CaCO₃ is giving by:

2HCl(aq) + CaCO₃(s)   →   CaCl₂(aq) + CO₂(g) + H₂O(l) (1)

0.500L     M: 100.01g/mol        

0.400M

According to equation (1), 2 moles of HCl react with 1 mol of CaCO₃, so to neutralize HCl, we need the next amount of CaCO₃:

m CaCO_{3} = (\frac{1 \cdot mol HCl}{2}) \cdot M_{CaCO_{3}} = (\frac{0.500L \cdot 0.400 \frac {mol}{L}}{2}) \cdot 100.01 \frac{g}{mol} = 10.001 g      

The CaCO₃ mass of each tablet is:

m CaCO_{3} = 1 g_{tablet} \cdot \frac{40g CaCO_{3}}{100g_{tablet}} = 0.4g

Hence, the number of tablets that we need to neutralize the HCl is:

number_{tablets} = ( \frac{1 tablet}{0.4 g CaCO_{3}}) \cdot 10.001g CaCO_{3} = 25  

Finally, if every 80 tablets costs 4.00 dollars, 25 tablets will cost:

cost = (\frac {4 dollars}{80 tablets}) \cdot 25 tablets = 1.25 dollars

<u>So, the total cost to neutralize the HCl is 1.25 dollars.</u>

I hope it helps you!

7 0
3 years ago
Lynette and Amber are planning their eighth-grade graduation ceremony. They are shopping for decorations for the stage.
Anna [14]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
A student athlete is participating in the hammer throw. The student rotates in uniform circular motion with the mass rotating 2.
Mice21 [21]

Answer:if the answer you are looking for has to do with the diagram its the one with the arrow pointing to the left

Step-by-step explanation:

6 0
3 years ago
5n +20n = 5(n+20) find N
likoan [24]

Answer:

n = 5

Step-by-step explanation:

Given

5n + 20n = 5(n + 20), that is

25n = 5(n + 20) ← divide both sides by 5

5n = n + 20 ( subtract n from both sides )

4n = 20 ( divide both sides by 4 )

n = 5

6 0
3 years ago
Read 2 more answers
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