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3 years ago

Clarissa sells handmade bracelets for each. The graph below shows her profits after expenses.

Mathematics

1 answer:

ser-zykov [4K]3 years ago

3 0

Answer:

It represents how many bracelets she sold and the profit she makes from it.

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Expansion Numerically Impractical. Show that the computation of an nth-order determinant by expansion involves multiplications,

posledela

Answer:

number of multiplies is n!
n=10, 3.6 ms
n=15, 21.8 min
n=20, 77.09 yr
n=25, 4.9×10^8 yr

Step-by-step explanation:

Expansion of a 2×2 determinant requires 2 multiplications. Expansion of an n×n determinant multiplies each of the n elements of a row or column by its (n-1)×(n-1) cofactor determinant. Then the number of multiplies is ...

mpy[n] = n·mp[n-1]

mpy[2] = 2

So, ...

mpy[n] = n! . . . n ≥ 2

If each multiplication takes 1 nanosecond, then a 10×10 matrix requires ...

10! × 10^-9 s ≈ 0.0036288 s ≈ 0.004 s . . . for 10×10

Then the larger matrices take ...

n=15, 15! × 10^-9 ≈ 1307.67 s ≈ 21.8 min

n=20, 20! × 10^-9 ≈ 2.4329×10^9 s ≈ 77.09 years

n=25, 25! × 10^-9 ≈ 1.55112×10^16 s ≈ 4.915×10^8 years

_____

For the shorter time periods (less than 100 years), we use 365.25 days per year.

For the longer time periods (more than 400 years), we use 365.2425 days per year.

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3 years ago

Explain how the position of the decimal point changes in a quotient as you divide by increasing powers of 10.

Darya [45]

The decimal adds a zero every time the powers of ten increase for example if u do 1 x $10^{2}$ =100 if u do 1x $10x^{3}$ =1,000

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3 years ago

Can anyone please help me with this? ASAP!

vovikov84 [41]

The 90 degrees one is the bottom left.

The reflection across the x is the top left one.

The 270 degree one is bottom right.

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3 years ago

How many hours will the 2 jobs pay the same amount

alexandr402 [8]

Answer:

explain

Step-by-step explanation:

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I am Lyosha [343]

Answer:

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Step-by-step explanation:

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3 years ago

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