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uranmaximum [27]
3 years ago
12

56.4059 - 4.837 Estimate by rounding to the ones​

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
3 0

Answer:

Step-by-step explanation:

56.4059 - 4.837 = 56 - 5 = 51

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In how many ways can Susan arrange 7 books into 5 slots on her bookshelf?
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Answer:

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Step-by-step explanation:

This is permutation question

<u>The formula for it: </u>

  • N = b!/(b-s)!, where N- number of ways, b- number of books, s- number of slots

<u>Finding the answer:</u>

  • N = 7!/(7-5)! = 7!/2! = 7*6*5*4*3 = 2520
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What two numbers that can be added to -13 but also be multiply to 36
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Step-by-step explanation:

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2 years ago
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I need help fast please I don’t understand this and I’ve been struggling for a while. Can I get a brain list please or a tutor t
solong [7]

Answer:

4 √6

Step-by-step explanation:

We have a few right triangles. We know that a²+b²=c², with c being the side opposite the right angle. Representing the side without a value as z, we have:

m²+z² = (8+4)² = 12²

4²+n²=z²

8²+n²=m²

We have 3 equations with 3 unknown variables, so this should be solvable. One way to find a solution is to put everything in terms of m and go from there. First, we can take n out of the equations entirely, removing one variable. We can do this by solving for it in terms of z and plugging that into the third equation, removing a variable as well as an equation.

4²+n²=z²

subtract 4²=16 from both sides

z²-16 = n²

plug that into the third equation

64 + z² - 16 = m²

48 + z² = m²

subtract 48 from both sides to solve for z²

z² = m² - 48

plug that into the first equation

m² + m² - 48 = 144

2m² - 48 = 144

add 48 to both sides to isolate the m² and its coefficient

192 = 2m²

divide both sides by 2 to isolate the m²

96 = m²

square root both sides to solve for m

√96 = m

we know that 96 = 16 * 6, and 16 = 4², so

m = √96 = √(4²*6) = 4 √6

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2 years ago
2. Ne jayden spent $2.50 to wash his car. If two quarters operate the car wash
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I think it is 5 minutes
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