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DaniilM [7]
1 year ago
13

Given RT below, if S lies on RT such that the

Mathematics
1 answer:
defon1 year ago
6 0

Answer:

(-2, -3)

Step-by-step explanation:

If a segment having extreme ends as (x_1,y_1) and (x_2,y_2) is divided by a point (x, y) in the ratio of m:n,

x = \frac{mx_2+nx_1}{m+n}

y = \frac{my_2+ny_1}{m+n}

Since, a line RT has extreme ends as R(-5, 3) and T(-1, -5) then a point S(x, y) which divides RT in the ratio of 3 : 1 will be,

x = \frac{3(-1)+1(-5)}{3+1}

  = \frac{-8}{4}

  = -2

y = \frac{3(-5)+1(3)}{3+1}

  = -\frac{12}{4}

  = -3

Therefore, coordinates of the point S will be (-2, -3).

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Which fraction is equivalent to fraction with numerator 6 and denominator negative 8? fraction with numerator negative 8 and den
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Fraction with numerator -6 and denominator 8 
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2 years ago
Read 2 more answers
Let the following sample of 8 observations be drawn from a normal population with unknown mean and standard deviation: 22, 18, 1
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Answer:

a:  Sample mean: 20, Sample standard deviation: 1.732

b:  19.13 <µ < 20.87

c:  18.84< µ < 21.16

d:  as the confidence level increases, the interval becomes wider

Step-by-step explanation:

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See the first attached photo for the calculations of these values.

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See the second attached photo for the construction of the confidence interval

We need to create a 90% confidence interval for the population.  Since n < 30, we will use a t-value with degree of freedom of 7 (the degree of freedom is always one less than the sample size.  

Look for the column on the t-distribution chart that has "area in two tails" of 0.10 (90%), and row 7 (degree of freedom)

The t-value is 1.895

See the third attached photo for the construction of the confidence interval

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1 year ago
Bill has an algorithm, find2D, to find an element x in an n × n array A. The algorithm find2D iterates over the rows of A and ca
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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