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3 years ago

S = 40, u 12, mZS = 37

Mathematics

1 answer:

Leni [432]3 years ago

3 0

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35% of students take spainsh or engineering. 30% of students take Spanish. 25% of students take engineering. What is the probabi

vladimir2022 [97]

Answer:

0.2 = 20% probability that a student takes Spanish and engineering

Step-by-step explanation:

We solve this question treating the probabilities as Venn sets.

I am going to say that:

Event A: Student takes Spanish

Event B: Student takes Engineering.

35% of students take spainsh or engineering.

This means that $P(A \cup B) = 0.35$

30% of students take Spanish.

This means that $P(A) = 0.3$

25% of students take engineering.

This means that $P(B) = 0.25$

What is the probability that a student takes Spanish and engineering?

This is $P(A \cap B)$ .

These probabilities are related by the following formula:

$P(A \cup B) = P(A) + P(B) - P(A \cap B)$

$P(A \cap B) = P(A) + P(B) - P(A \cup B)$

Replacing the values

$P(A \cap B) = 0.3 + 0.25 - 0.35 = 0.2$

0.2 = 20% probability that a student takes Spanish and engineering

7 0

3 years ago

Help me plz I don't know how to this I don't understand!!!

faust18 [17]

The answer is B.

In order for this chart to be true, each x and y pair must be proportional to the other ones. (in other words, each row of x and y should increase the same amount as the other ones.)

look at the first row. we can write this as 3/5 (x over y). then look at the third and fourth row. 6/10 = 3/5, and 9/15 = 3/5, so the pairs are proportional.

6 0

4 years ago

D=vit + at<br> solve for vi

gavmur [86]

Answer:

$\large\boxed{vi=\dfrac{d-at}{t}}$

Step-by-step explanation:

$d=vit+at\qquad\text{subtract}\ at\ \text{from both sides}\\\\d-at=vit+at-at\\\\d-at=vit\qquad\text{divide obth sides by}\ t\\\\\dfrac{d-at}{t}=\dfrac{vit}{t}\\\\\dfrac{d-at}{t}=vi$

7 0

3 years ago

Which of the following are exterior angles? Check all that apply.

ArbitrLikvidat [17]

Chmguikaksoosnssisiw eesheiwwmeheiemene

5 0

3 years ago

Tell wether the the triangles are similar

den301095 [7]

I am not an expert so I would not trust my answer but I am pretty sure that they are alike because if you turn them the same side well the they are both right triangles. So yes theses triangles would be alike

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3 years ago