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3 years ago

Find A ∩ B if A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}.

Mathematics

1 answer:

Korvikt [17]3 years ago

8 0

Their intersection is 7 because is you look at the coordinates of both A and B they have 7 in common

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Evaluate the following expression <br> 20/ 2 + 8

vitfil [10]

Answer:

Step-by-step explanation:

20/2 + 8

Divide the numerator and denominator by 2

20 / 2

2 / 2

Divide the numbers

2 / 2

10 / 1

Any expression divided by 1 remains the same

10 + 8 = 18

3 0

3 years ago

Please help ill give brainliest

Nata [24]

I am pretty sure the answer is c

6 0

3 years ago

Read 2 more answers

3. The MPG (Miles per Gallon) for a mid-size car is normally distributed with a mean of 32 and a standard deviation of .8. What

mariarad [96]

Answer:

93.32 %

Step-by-step explanation:

33.2 is 1.2 away from 32 this is 1.2 / .8 = 1.5 standard deviations ABOVE the mean z -score = + 1.5

from z-score table this corresponds to .9332 this is 93.32 %

8 0

1 year ago

PLZZZZ HELPPPPPPPPP!!!! a survey asks teachers and students whether they would like the new school mascot to be a Viking or a Pa

VARVARA [1.3K]

Answer:

Step-by-step explanation:

Two events A and B are called independent, when

$P(B|A)=P(B),$

where $P(B|A)$ is the probability that B occurs given that A has already occurred.

A = randomly selected person is a student

B = randomly selected person prefer "Vikings"

B|A = randomly selected student prefer "Vikings"

Probabilities:

$P(A)=\dfrac{100}{125}=\dfrac{4}{5}=0.8\\ \\P(B|A)=\dfrac{80}{85}=\dfrac{16}{17}\approx 0.94$

Since

$0.80\neq 0.94$

we can state that events are not independent.

8 0

3 years ago

Read 2 more answers

First one please thanksssa

serious [3.7K]

In order to find this, we need to count exactly how many times each of them blinks within 60 seconds. Then, we find which numbers are the same.

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60

6, 12, 18, 24, 30, 36, 42, 48, 54, 60

Now, I will bold the numbers that are the same.

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60

6, 12, 18, 24, 30, 36, 42, 48, 54, 60

Now, we have our answer.

Answer: The two neon lights will blink on the 12, 24, 36, 48, and 60 second marks.

Hope I helped!

5 0

3 years ago