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trapecia [35]
3 years ago
6

Which equation can be used to solve for X in the following diagram

Mathematics
1 answer:
Leokris [45]3 years ago
3 0

Answer:

<h2>C. 3x + 80 + 2x = 180</h2>

Step-by-step explanation:

The straight line creates an angle of 180 °.

Therefore from the picture we have the equation:

3x + 80 + 2x = 180        <em>subtract 80 from both sides</em>

5x = 100           <em>divide both sides by 5</em>

x = 20

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709,189<br> +348,987<br> ________
Leni [432]

Answer: 1058176

check:

1058176 - 709,189= 348,987

6 0
3 years ago
Blood type AB is the rarest blood type, occurring in only 4% of the population in the United States. In Australia, only 1.5% of
Umnica [9.8K]

Answer:

a. X is a binomial random variable with n = 50 and p = 0.04

b. Y is a binomial random variable with n = 40 and p = 0.015

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

X: the number of US residents (out of 50) with blood type AB.

Blood type AB is the rarest blood type, occurring in only 4% of the population in the United States

This means that p = 0.04, n = 50

Y: the number of Australians (out of 40) with blood type AB.

In Australia, only 1.5% of the population has blood type AB.

This means that p = 0.015, n = 40

Z: the total number of individuals (out of 90) with blood type AB.

Here

n = 90, p = 0.04*\frac{50}{90} + 0.015*\frac{40}{90} = 0.0289

Which of the following is true about the random variables X, Y, and Z?

Options a and b are true, while c is false.

7 0
3 years ago
Please! I need help!
topjm [15]

Answer:

2^1×2^3

2^8×2^−5

2^1×2^2

Step-by-step explanation:

7 0
3 years ago
If the replacement set is the set of integers, find the solution set for the inequality:
kakasveta [241]
It would be D as the correct answer
8 0
3 years ago
Read 2 more answers
HELP!!<br> This is for my geometry exam and i don’t understand <br> please help
rusak2 [61]

Answer:

Step-by-step explanation:

Sin 58° = 0.848 = BC/13

So

BC = 0.848*13 = 11.024

4 0
2 years ago
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