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3 years ago

How many solutions are there to the equation y = 14x – 9? Plz HELP

Mathematics

1 answer:

dem82 [27]3 years ago

8 0

D is correct because you could put in a value for x and get a true value for y

exg
x=3
y=14(3)-9
y=42-9
y=33

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What expression is equivalent to 36a-27

mezya [45]

Answer:

Another expression: 9*(4a - 3)

Step-by-step explanation:

Though 36a - 27 is the simplest form we can factor it

36a - 27 = 9* (4a - 3)

5 0

3 years ago

Convert 242 dm to feet. Round to 1 decimal.

olchik [2.2K]

Answer:

it is 79.4 ft.

Step-by-step explanation:

u just have to round until it gets to one decimal

4 0

3 years ago

What is the perimeter of the parallelogram???

enot [183]

Answer: 22

explanation: the easiest way is to separate one of the diagonals into a triangle and use the pythagorean theorem.
a^2 + b^2 = c^2
4^2 + 3^3 = c^2
16 + 9 = c^2
25 = c^2
5 = c
you now know that both of the diagonals have a length of 5.
by counting the units on the two straight, you know that their length is 6.
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8 0

3 years ago

PLEASE HELP FAST! What is the distance between the two points located at (14, 27) and (14, −8)? this is in units.

KIM [24]

Answer:

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

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

2 years ago