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ella [17]
2 years ago
5

1. what are the general strategies to convert difficult problems to easier ones? (list at least two strategies) 2. if a matrix a

is nonsingular, what properties does a have? (give at least one property) 3. what is normal equation? (give the formula) 4. how many solutions does a linear system have? 5. what is an overdetermined system?
Mathematics
1 answer:
musickatia [10]2 years ago
3 0
If the matrix is a nonsingual then two strategies must be properties
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The temperature outside was 60 degrees when Sarah woke up. By noon, it had increased to 75 degrees. Find the percent increase in
DochEvi [55]
Temp1 = 60
Temp2 = 75
Temp2 - Temp1 = 15

Difference = (Temp2 - Temp1) / Temp1
Difference = 15 / 60 = 1 / 4 = 0.25
Percentage difference = difference * 100% = 0.25 * 100% = 25%
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3 years ago
Determine if the given sides are a triangle or not <br><br> A. 21 cm, 7 cm, 6 cm
fgiga [73]

Answer:

This is not a triangle

Step-by-step explanation:

If you use the triangle inequality theorem you can reach your answer.

The theorem states that if you add the length of any 2 sides together, you will have a length greater than the length of the other side. Using this method we can easily see that 7+6=13 which is less than 21. Meaning this is not a triangle

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3 years ago
In a group of 55 examinees taking the 50-item test, Rachel obtained the score of 38. This implies that her score is...​
tensa zangetsu [6.8K]

Answer:

she scored 76 percent in the test

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3 years ago
What is five and nine tenths in standard form
zheka24 [161]
I believe the answer is 5.9
4 0
3 years ago
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3) Suppose you deposit $10,000 in a savings account that pays interest at an annual rate of 5%
jeyben [28]

9514 1404 393

Answer:

  3.67 years

Step-by-step explanation:

The amount is found using the compound interest formula.

  A = P(1 +r/n)^(nt)

for principal P invested at annual rate r compounded n times per year for t years.

We can solve this for t:

  A/P = (1 +r/n)^(nt) . . . . divide by P

  log(A/P) = (nt)log(1 +r/n) . . . . take the logarithm

  t = log(A/P)/(n·log(1 +r/n)) . . . . divide by the coefficient of t

Filling in the given values, we find ...

  t = log(12000/10000)/(4·log(1 +0.05/4)) ≈ 3.6692

It will take about 3.67 years for the balance to reach $12,000.

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3 years ago
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