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3 years ago

I need this ASAP please!!!

Mathematics

2 answers:

Andrej [43]3 years ago

8 0

Answer:

Step-by-step explanation:

andre [41]3 years ago

6 0

The answer is c here are the steps to get the answer 8

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1/). Help ASAP Find the area of each circle to the nearest tenth

pentagon [3]

Answer:

153.9

Step-by-step explanation:

3 0

3 years ago

It takes most oceans about 6 hours to go from high tide to low tide.Suppose that the water level decreases at a rate of 3 feet p

juin [17]

Answer:

From the level of high tide to low tide, it's 18 feet.

Step-by-step explanation:

To find the change in water level, we multiply the rate (3 ft / hr) by the time (6 hrs), obtaining 18 ft.

The water level changes by 18 ft.

8 0

3 years ago

(7*10^5)^2 simplified in scientific notation

coldgirl [10]

♥ Lets solve this:
(7*10^5)^2(7*10^5)^2
Starting with 10^5
10*10*10*10*10
We get 100000
Now we have 7*100000
Solve for that:
We get 700000
Now we have 700000^2
Solve for that
We get 490000000000
and in Scientific notation that is
4.9*10^11

5 0

3 years ago

Read 2 more answers

The u.s. senate is composed of 2 senators from each state

Anit [1.1K]

The US Senate is composed of 2 Senators from each of the 50 states to give a total of 100 people in the Senate.

4 0

4 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