3 years ago

ANSWER QUICKLY PLEASE Given the triangles are similar, find BD.

Mathematics

1 answer:

Alla [95]3 years ago

5 0

Answer:

The answer is 10

Step-by-step explanation:

Trust me

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Consider a normal population with the mean of 40 and standard deviation of 10. A random sample of was selected: 39.2, 45.7, 27.4

Tems11 [23]

Answer:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= 38.91$

And we can find the bias with this formula:

$Bias= \bar X -\mu$

And replacing we got:

$Bias = 38.91 -40 = -1.09$

Step-by-step explanation:

For this problem we know that the random variable of interest follows this distribution:

$X \sim N(\mu =40, \sigma= 10)$

And we have the following random sample given:

39.2, 45.7, 27.4, 25.9, 25.1, 46.3, 42.9, 49.0, 40.6, 47.0

And we can calculate the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= 38.91$

And we can find the bias with this formula:

$Bias= \bar X -\mu$

And replacing we got:

$Bias = 38.91 -40 = -1.09$

5 0

3 years ago

Eli has a number cube. Each side has a different number: 1, 2, 3, 4, 5, or 6. Eli will roll the number cube once. What is the pr

Vanyuwa [196]

The odds of rolling a 4 is 1/6 or 0.16667 or 16%

8 0

4 years ago

Sound intensity of certain Vacuum Cleaner is a random variable having a normal distribution with a mean of 75 dB and a standard

fomenos

Answer:

10 thousand times loud pls mark me as the brainliset hope it helps you

8 0

3 years ago

Simplify 2x + 5(2x - 3)

Thepotemich [5.8K]

Step-by-step explanation:

= 2x + 10x - 15

=12x - 15

I think this is the answer

7 0

3 years ago

What adds for -26 and multiplys for 10

inn [45]

2 * 5 would give you 10
and

-30 + 4 would give you -26 :)

6 0

4 years ago