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sdas [7]
3 years ago
6

In circle L, points E and F lie on the circle such that E, F and L are not collinear. If LE, LF and EF are drawn then which of t

he following must be true about LEF?
(1) It is a right triangle.
(2) it is and isosceles triangle.
(3) it is an equilateral triangle.
(4) it is an obtuse triangle.​
Mathematics
1 answer:
frozen [14]3 years ago
8 0

Answer:

<u>option (2) it is and isosceles triangle. </u>

Step-by-step explanation:

In circle L, points E and F lie on the circle such that E, F and L are not collinear

If LE, LF and EF are drawn

So, LE = EF = the radius of the circle L

So, LEF is an isosceles triangle.

The answer is option (2) it is and isosceles triangle.

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The value of homes sold in Hampton VA are normally distributed with a mean of $200,000 and a standard deviation of $10,000. If 1
LenKa [72]

Answer:

84%

Step-by-step explanation:

What we must do is calculate the z value for each value and thus find what percentage each represents and the subtraction would be the percentage between those two values.

We have that z is equal to:

z = (x - m) / (sd)

x is the value to evaluate, m the mean, sd the standard deviation

So for 190000 we have:

z = (190000 - 200000) / (10000)

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and this value represents 0.1587

for 230000 we have:

z = (230000 - 200000) / (10000)

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and this value represents 0.9987

we subtract:

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Which means that it represents 84% of the houses

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3 years ago
Which numerical descriptive measure shows whether two numerical variables have a linear relationship
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Answer:

Correlation Coefficient

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3 0
2 years ago
How do you write 12,430,000 in expanded form
const2013 [10]

we know that

12,430,000 in expanded form is equal to

12,430,000=1*(10,000,000)+2*(1,000,000)+4*(100,000)+3*(10,000)\\\\   12,430,000=(10,000,000)+(2,000,000)+(400,000)+(30,000)

therefore

<u>the answer is</u>

(10,000,000)+(2,000,000)+(400,000)+(30,000)

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