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3 years ago

Identify the equation that correctly shows the given relationship.

Mathematics

2 answers:

madreJ [45]3 years ago

4 0

Answer: A

Step-by-step explanation:

Nina [5.8K]3 years ago

4 0

It’s A he is correct and have a good day

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Given P(A)=0.78P(A)=0.78, P(B)=0.65P(B)=0.65 and P(A\cup B)=0.873P(A∪B)=0.873, find the value of P(A\cap B)P(A∩B), rounding to t

Sever21 [200]

Answer:

$P(A\ n\ B) = 0.557$

Step-by-step explanation:

Given

$P(A) = 0.78$

$P(B) = 0.65$

$P(A\ u\ B) = 0.873$

Required

Determine $P(A\ n\ B)$

From laws of probability, we have:

$P(A\ n\ B) = P(A) + P(B) - P(A\ u\ B)$

Substitute in values

$P(A\ n\ B) = 0.78 + 0.65 - 0.873$

$P(A\ n\ B) = 0.557$

Hence, $P(A\ n\ B)$ is calculated to be 0.557

8 0

3 years ago

winthrop Middle School had enrollment of 1,342 and a total of 215 teachers. what was the student teacher ratio for this School w

eimsori [14]

Teachers= 215
Students= 1,342

Student: Techer
= 1,342: 215
= 62.1:1
= $\frac{62.1}{1}$

3 0

3 years ago

Read 2 more answers

Kevin savings account balances changed from 1140 in January to 1450 in April. Find the average rate of change per month

snow_tiger [21]

103 1/3. In February, it will be 1243 1/3. In March, it will be 1346 2/3. In April, it will be 1450.

6 0

4 years ago

Read 2 more answers

A whole lotta points. Please answer its life and death urgency. I will give everything, including brainliest. But ONLY if you an

Oksana_A [137]

Answer:

The correct answer is 31x + 0.5

Step-by-step explanation:

∵ 13x + 5 + 17x - 4.5 + x

To solve this correctly you must to add the coefficients of the like terms (terms who has same variables or constant terms)

∵ 13x , 17x , x are like terms ⇒ terms with same variable

(same letters and same power)

∵ 5 , 4.5 are like terms ⇒ constant terms (numbers only)

∴ (13x + 17x + x) + (5 - 4.5) = 31x + 0.5

* The error of first answer:

- 18x + 17x - 4.5 + x

- She add 13x + 5 = 18x ⇒ she add unlike terms

* The error of second answer:

- 35x - 4.5 + x

- She add 13x + 5 + 17x = 35x ⇒ she add 2 like terms with 1 unlike term

* The error of third answer:

- 30.5x + x

- She add 13x + 5 + 17x - 4.5 = (13x + 17x) + (5 - 4.5) =

30x + 0.5 ⇒ she add 2 like terms and 2 constant terms

and then add the 2 unlike answers

* The error of fourth answer:

- 31.5x

- She add 13x + 5 + 17x - 4.5 + x = (13x + 17x + x) + (5 - 4.5) =

31x + 0.5 ⇒ she add 3 like terms and 2 constant terms

and then add the 2 unlike answers

5 0

3 years ago

Find the range of the data set 37 40 33 45 32 34

Lelechka [254]

Answer: 13

Step-by-step explanation: The range of a group of numbers is the difference between the largest and smallest numbers. First, we can order these numbers from least to greatest.

32 - 33 - 34 - 37 - 40 - 45

Next, we can subtract the smallest number from our largest number.

Smallest number = 32

Largest number = 45

45 - 32 = 13

Therefore, the range of these numbers is 13.

3 0

3 years ago