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2 years ago

I need help with these 3 questions

Mathematics

1 answer:

mixas84 [53]2 years ago

3 0

Answer:

1. 280km

that's all I feel like doing

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Help idk how to do this

arsen [322]

Answer:

Look it up on google, you might find that there. that stuff is hard

Step-by-step explanation:

6 0

2 years ago

A regular polygon

olga55 [171]

Answer:

3.6° = ext. angle

Step-by-step explanation:

For the shape to be a regular polygon, all interior angles must be congruent.

We can find every interior angle by using the formula:

$\frac{180(n-2)}{n}$

$\frac{180(100-2)}{100}$

$\frac{180(98)}{100}$

$\frac{17640}{100}$

176.4 = each int. angle

We also know that int. and ext. angles are supplementary!

180 = 176.4 - x

3.6° = ext. angle

5 0

3 years ago

H(x)=x-4 what’s is the domain of h?

Kazeer [188]

Answer:

all real number

Step-by-step explanation:

since h(x) is polynomial function

5 0

2 years ago

The area shaded purple contains the solutions to this system of equations. Which ordered pair is a solution to the system?

Ksivusya [100]

Answer: -60,20

Step-by-step explanation:

3 0

2 years ago

A box contains 3 coins. One coin has 2 heads and the other two are fair. A coin is chosen at random from the box and flipped. If

Blababa [14]

Answer: Our required probability is $\dfrac{1}{2}$

Step-by-step explanation:

Since we have given that

Number of coins = 3

Number of coin has 2 heads = 1

Number of fair coins = 2

Probability of getting one of the coin among 3 = $\dfrac{1}{3}$

So, Probability of getting head from fair coin = $\dfrac{1}{2}$

Probability of getting head from baised coin = 1

Using "Bayes theorem" we will find the probability that it is the two headed coin is given by

$\dfrac{\dfrac{1}{3}\times 1}{\dfrac{1}{3}\times \dfrac{1}{2}+\dfrac{1}{3}\times \dfrac{1}{2}+\dfrac{1}{3}\times 1}\\\\=\dfrac{\dfrac{1}{3}}{\dfrac{1}{6}+\dfrac{1}{6}+\dfrac{1}{3}}\\\\=\dfrac{\dfrac{1}{3}}{\dfrac{2}{3}}\\\\=\dfrac{1}{2}$

Hence, our required probability is $\dfrac{1}{2}$

No, the answer is not $\dfrac{1}{3}$

5 0

2 years ago