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4 years ago

Use ΔABC to answer the question that follows:

1 answer:

7 0

II establishes the lines are parallel, then III renames the parallel lines to refer to specific segments. The order of these statements should be II, III.

IV establishes that BGCH is a parallelogram, then I makes use of the properties of a parallelogram. The order of these statements should be IV, I.

The appropriate choice is ...

... II, III, IV, I . . . . . . . the 3rd selection

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In abc above,what is the length of ad

Nezavi [6.7K]

Answer:

Step-by-step explanation:

First calculate BD using sine ratio in Δ BCD and the exact value

sin60° = $\frac{\sqrt{3} }{2}$ , thus

sin60° = $\frac{opposite}{hypotenuse}$ = $\frac{BD}{BC}$ = $\frac{BD}{12}$ = $\frac{\sqrt{3} }{2}$ ( cross- multiply )

2BD = 12 $\sqrt{3}$ ( divide both sides by 2 )

BD = 6 $\sqrt{3}$

-----------------------------------------------------------

Calculate AD using the tangent ratio in Δ ABD and the exact value

tan30° = $\frac{1}{\sqrt{3} }$ , thus

tan30° = $\frac{opposite}{adjacent}$ = $\frac{AD}{BD}$ = $\frac{AD}{6\sqrt{3} }$ = $\frac{1}{\sqrt{3} }$ ( cross- multiply )

$\sqrt{3}$ AD = 6 $\sqrt{3}$ ( divide both sides by $\sqrt{3}$ )

AD = 6 → B

4 0

3 years ago

The number of lightning strikes in a year at the top of a particular mountain has a poisson distribution with a mean of 3.8. fin

atroni [7]

Let X be the number of lightning strikes in a year at the top of particular mountain.

X follows Poisson distribution with mean μ = 3.8

We have to find here the probability that in randomly selected year the number of lightning strikes is 0

The Poisson probability is given by,

P(X=k) = $\frac{e^{-mean} mean^{x}}{x!}$

Here we have X=0, mean =3.8

Hence probability that X=0 is given by

P(X=0) = $\frac{e^{-3.8} 3.8^{0}}{0!}$

P(X=0) = $\frac{0.02237 * 1}{1}$

P(X=0) = 0.0224

The probability that in a randomly selected year, the number of lightning strikes is 0 is 0.0224

5 0

3 years ago

Idk what it’s asking

Verdich [7]

Answer: Its asking for the square root of the number 17, if you take another picture not so zoomed in then i can help you more

Step-by-step explanation:

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3 years ago

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How would I write and addition equation for Question 6

vesna_86 [32]

27+56=83 IDK I GUESS THATS YOUR ANSWER

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4 years ago

Find the radius of the circle having circmference 88 cm

igomit [66]

About 14.01
hope that helps!!

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3 years ago

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