All categories

3 years ago

Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n? Ø {0} all reals

2 answers:

7 0

18-3n+2=n+20-4n combine like terms on each side

20-3n=20-3n

So the above is true for all real values of n. n=(-oo, +oo) (all real values)

tiny-mole [99]3 years ago

5 0

Answer:

I agree with the other person, the answer should be all reals.

Step-by-step explanation:

You might be interested in

Maury completed a bicycle race 1.5 hours faster than Vince at an average speed of 16 miles per hour. Vince completed the same ra

MAXImum [283]

Let the time taken by Vince to complete the race was x hours.
Maury completed the race 1.5 hours faster. This means Maury complete the race in (x - 1.5) hours.

Average Speed of Maury = 16 miles per hour
Average Speed of Vince = 12 miles per hour

Distance = Speed x Time.

For Maury:
Distance = 16(x - 1.5)

For Vince:
Distance = 12x

Since the distance covered by both was the same, we can equate the two equations as:

16(x - 1.5) = 12x
16x - 24 = 12x
4x = 24
x = 6
This means Vince complete the race in 6 hours.

Distance = Speed x Time = 12 x 6 = 72 miles

Thus, the total distance of the race was 72 miles.

3 0

2 years ago

Simplify<br> PLZ HELP QUICKLY

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

3 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

Naddik [55]

Answer:

There is a 27.62% probability that exactly 2 of the U.S. residents have blood type AB.

Step-by-step explanation:

For each U.S. resident, there are only two outcomes possible. Either they have blood type AB, or they do not. This means that we can solve this problem using binomial probability distribution concepts.

Binomial probability distribution

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

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

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

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

And $\pi$ is the probability of X happening.

In this problem, we have that:

50 U.S residents are sampled, so $n = 50$

4% of the U.S population has blood type AB, so $p = 0.04$ .

What is the probability that exactly 2 of the U.S. residents have blood type AB?

This is P(X = 2). So:

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

$P(X = 2) = C_{50,2}.(0.04)^{2}.(0.96)^{48} = 0.2762$

There is a 27.62% probability that exactly 2 of the U.S. residents have blood type AB.

5 0

3 years ago

Describe a set of transformations that would map Triangle FGH onto Triangle F’G’H’

daser333 [38]

The translations would be this

1) reflection over the x-axis
2) translation of (-6,0)

6 0

2 years ago

Which of the following numbers are irrational? A.9/15 B.18 squared C.9 squared D.169 squared E. 78 squared

finlep [7]

Answer is <span>A.9/15
'''''''''''''''''''''''
</span><span />

An irrational number cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal.

6 0

3 years ago