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Mathematics

1 answer:

Vanyuwa [196]3 years ago

6 0

i am not sure but it think its 6 root 2

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Write the expression in Standard form.

nydimaria [60]

i√5

steps:

negative square root is called a complex number

for a negative square root standard form means have an i in the number

i = √-1

standard form for a complex number is

a+bi

√-5 = √5 x √-1

i√5

michael lipp

brian mclogan

6 0

1 year ago

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Briefly describe each of the eight guidelines for evaluating statistical studies.

myrzilka [38]

8 Guidelines for Critically Evaluating a Statistical Study

1. Identify the Goal, Population, and Type of Study

2. Consider the Source

3. Examine the Sampling Method

4. Look for Problems in Defining or Measuring the Variables of

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5. Watch Out for Confounding Variables

6. Consider the Setting and Wording of Any Survey

7. Check That Results Are Fairly Represented in Graphics or

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2 years ago

Line segment AB has endpoints A(7.5, 4.2) and B(2.3, 5.4). Find the coordinates of the point that divides the line segment direc

galben [10]

Given a line with endpoints $A(x_1,\, y_1)$ and $B(x_2,\, y_2)$ , the coordinates of the point that divides the line segment directed from A to B in the ratio of m : n is given by

$(x,\, y)=\left( \frac{n(x_1)+m(x_2)}{m+n} ,\, \frac{m(y_1)+n(y_2)}{m+n} \right)$

Given that line segment AB has endpoints A(7.5, 4.2) and B(2.3, 5.4). the coordinates of the point that divides the line segment directed from A to B in the ratio of 1 : 3 is given by

$(x,\, y)=\left( \frac{3(7.5)+2.3}{1+3},\, \frac{3(4.2)+5.4}{1+3} \right) \\ \\ =\left( \frac{22.5+2.3}{4} ,\, \frac{12.6+5.4}{4} \right)=\left( \frac{24.8}{4} ,\, \frac{18}{4}\right) \\ \\ =(6.2,\, 4.5)$