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TEA [102]
3 years ago
8

- Katrina practices violin 4 times per

Mathematics
1 answer:
Darina [25.2K]3 years ago
5 0
Katrina practices 4 hours a week.

Jeremy practices 2 hours and 15 minutes a week.

Answer Katrina practices more than Jeremy by 1 hour and 48 minutes
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-11/12

Step-by-step explanation:

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3 years ago
Which vocabulary word best describes the math sentence you see here?
nlexa [21]

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Expression

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7 0
2 years ago
5-4x(x+2)=9<br> Find rhe X need the whole thing
nadya68 [22]

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x=-1 hope this helpsss

Step-by-step explanation:

3 0
3 years ago
How much money should be deposited today in an account that earns 6% compounded monthly so that it will accumulate to $1000000 (
aleksandr82 [10.1K]

Answer:

The principal investment required to get  a total amount of $ 1,000,000.00  from compound interest at a rate of 6% per year  compounded 12 times per year  over 45 years  is $ 67,659.17.

Step-by-step explanation:

Given

  • Accrued Amount A = $1000000
  • Interest rate r = 6% = 0.06
  • Time period t = 45 years
  • Compounded monthly n = 12

To determine:

  • Principle amount P = ?

Using the formula

A\:=\:P\left(1\:+\:\frac{r}{n}\right)^{nt}

P\:=\frac{A}{\left(1\:+\:\frac{r}{n}\right)^{nt}}

substituting A = 1000000, r =  0.06, t = 45, and n = 12

P\:=\frac{1000000}{\left(1\:+\:\frac{0.06}{12}\right)^{12\cdot 45}}\:

    =\frac{1000000}{1.005^{540}}

P = 67659.17 $

Therefore, the principal investment required to get  a total amount of $ 1,000,000.00  from compound interest at a rate of 6% per year  compounded 12 times per year  over 45 years  is $ 67,659.17.

7 0
3 years ago
What value represents the number of ways in which the expected classes are free to vary in the chi-square goodness-of-fit test?
Ket [755]

In statistics, the number of degrees of freedom is the number of values in the final calculation of a statistic that are free to vary.

The number of independent ways by which a dynamic system can move, without violating any constraint imposed on it, is called number of degrees of freedom. In other words, the number of degrees of freedom can be defined as the minimum number of independent coordinates that can specify the position of the system completely.

<span>
The degree of freedom
represents the number of ways in which the expected classes are free to vary in the chi-square goodness-of-fit test.</span>

8 0
3 years ago
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