Is 4,9,16 an arithmetic or geometric sequence?

Frankie bought 13 yards of string for her art project. Each yard cost $2.00. Malika spent $54.00 on the string. How much more di

kirill115 [55]

Step-by-step explanation:

13x+2=54

subtract 2 from both sides.

13x=54

divide both sides by 13

x=4.

therefore Malika spend 4 more dollars on a string than Frankie

8 0

3 years ago

According to the document Current Population Survey, published by the U.S. Census Bureau, 30.4% of U.S. adults 25 years old or o

Marizza181 [45]

Answer:

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they have a high school degree as their highest educational level, or they do not. The probability of an adult having it is independent of any other adult. This means that the binomial probability distribution is used to solve this question.

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.

30.4% of U.S. adults 25 years old or older have a high school degree as their highest educational level.

This means that $p = 0.304$

100 such adults

This means that $n = 100$

Determine the probability that the number who have a high school degree as their highest educational level is a. Exactly 32

This is P(X = 32).

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

$P(X = 32) = C_{100,32}.(0.304)^{32}.(0.696)^{68} = 0.0803$

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

7 0

3 years ago

Why are your triangles not identical?<br> Type your answer below:

Ainat [17]

Answer:

bc

Step-by-step explanation:

idkkkkkkkkkkkkkkkkkkkk

4 0

3 years ago

Area of a circle

Nutka1998 [239]

Answer:

49 pie

Step-by-step explanation:

Area of a circle is pie(radius squared)

radius is half diameter

7 0

3 years ago

The answer key says the answer is B, but I don't understand how it is decreasing...isn't the velocity shown to be increasing? An

german

Answer:

Acceleration and velocity are two different things. The acceleration is the rate at which the velocity is increasing. So while the velocity very well may be increasing, the rate (acceleration) at which it is, is decreasing.

8 0

3 years ago

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