All categories

2 years ago

Describe a situation that could be modeled with the ratio 4:1

2 answers:

7 0

In a lybrary there are books. The ratio for the science books to science fiction books is 4:1. How many books of science fiction are if in total are 36.000 books?

Nookie1986 [14]2 years ago

5 0

The American infantry is outnumbered by the Chinese infantry by 4:1

You might be interested in

By rewriting the formula for the Multiplication Rule, you can write a formula for finding conditional probabilities. The condit

ss7ja [257]

Answer:

89.01% probability that a flight arrives on time given that it departed on time.

Step-by-step explanation:

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Departing on time

Event B: Arriving on time.

The probability that a flight departs and arrives on time is 0.81.

This means that $P(A \cap B) = 0.81$

The probability that an airplane flight departs on time is 0.91.

This means that $P(A) = 0.91$

Find the probability that a flight arrives on time given that it departed on time.

$P(B|A) = \frac{0.81}{0.91} = 0.8901$

89.01% probability that a flight arrives on time given that it departed on time.

5 0

2 years ago

Rewrite the following expression using the properties of logarithms. log2z+2log2x+4log9y+12log9x−2log2y You must show all of you

mr Goodwill [35]

Answer:

53437.3639

Step-by-step explanation:

23y5o9-023.36839637836386378673676763767678362

6 0

2 years ago

the Vikings play 36 games this year at midseason they had won 16 games. How many of the remaining games must they win in order t

aliina [53]

80% of their games are 28.8, or 29 games (since they need to win at least 80%). They have already won 16. 29-16 is 13.

Therefore, they need to win 13 more games.

P.S. The midseason statement is irrelevant.

5 0

2 years ago

If a random variable X is exponentially distributed with parameter λ=2, then P(X≥1) is equal to

Rasek [7]

Answer:

D. 0.1353

B. 0.0473

Step-by-step explanation:

For an exponentially distributed random variable, the cumulative distribution function is:

$P(x\leq a) = 1 - e^{-\lambda a}\\P(x\geq a) = e^{-\lambda a}$

with parameter λ=2, then P(X≥1) is equal to:

$P(x\geq 1) = e^{-2*1}=0.1353$

D. 0.1353

with parameter λ=1.5, then P(2≤X≤4) is equal to

$P(2\leq x \leq 4) = P(x \leq 4) - P(x\leq 2)\\P(2\leq x \leq 4) =1 - (e^{-1.5*4}) - (1-(e^{-1.5*2}))\\P(2\leq x \leq 4) = 0.0473$

B. 0.0473

7 0

2 years ago

HELP PLEASE!!!!

alexgriva [62]

Answer:

9 mozzarella sticks and 3 onion rings

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers