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3 years ago

WILL GIVE BRAINLIST AS SOON AS I CAN... is this A? i think it is but i might be wrong.

Mathematics

2 answers:

11Alexandr11 [23.1K]3 years ago

7 0

I think 'neither' because A and C do not connect anywhere, while they are NOT parellel.

Hope this helps.

igor_vitrenko [27]3 years ago

5 0

Answer:

The answer is B, they are perpendicular

Step-by-step explanation:

To be able to figure this out, you have to first find the relationship between a and b.

You can conclude lines a and b are parallel by the consecutive angles theorem. Line d would be the transversal line that intercepts line a and line b. Because the consecutive angles created are equal, lines a and b are parallel .

Then you can conclude the relationship between line c and d through the exact same principle. Lines c and d are parallel.

Notice how line a and line d create a right angle (as indicated by the square drawn on the angle) which means the lines are perpendicular to each other.

Since line c is parallel to line d, you can finally conclude that the intercept of line c and a would create a right angle and the lines would this be perpendicular.

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In a survey, 400 people were asked to choose one card out of five cards labeled 1 to 5. The results are shown in the table. Com

-BARSIC- [3]

Answer:

The value of the experimental probability is greater

Step-by-step explanation:

For the theoretical probability;

the probability that a card with the number 3 is selected is 1/5

We consider that the probabilities of each selection are equal, for the theoretical probability

For the experimental, we simply place the frequency of the selection 3 over the total

that will be 128/400 = 8/25

As we know that 8/25 is greater than 1/5

We can conclude that the value of the experimental probability is greater than that of the theoretical

6 0

3 years ago

Read 2 more answers

F(x)=2x+3 find x=9 explain how you got the answer please help me I need the answer today

hram777 [196]

You would fill in 9 for x so your equation would be 2(9)+3 and you would then get 21. Therefore the answer is f(x)=21

6 0

3 years ago

I need help will mark brainliest

romanna [79]

Answer:

A. -8

B. -8

C. 20

Step-by-step explanation:

5 0

2 years ago

Geometry help on questions 1,2,3

Semmy [17]

The exact value of d is $44 \sqrt{2}$

a. 62
b. 62.2
c. 62.23

4 0

2 years ago

The probability density function of the time you arrive at a terminal (in minutes after 8:00 A.M.) is f(x) = 0.1 exp(−0.1x) for

Blababa [14]

$f_X(x)=\begin{cases}0.1e^{-0.1x}&\text{for }x>0\\0&\text{otherwise}\end{cases}$

a. 9:00 AM is the 60 minute mark:

$f_X(60)=0.1e^{-0.1\cdot60}\approx0.000248$

b. 8:15 and 8:30 AM are the 15 and 30 minute marks, respectively. The probability of arriving at some point between them is

$\displaystyle\int_{15}^{30}f_X(x)\,\mathrm dx\approx0.173$

c. The probability of arriving on any given day before 8:40 AM (the 40 minute mark) is

$\displaystyle\int_0^{40}f_X(x)\,\mathrm dx\approx0.982$

The probability of doing so for at least 2 of 5 days is

$\displaystyle\sum_{n=2}^5\binom5n(0.982)^n(1-0.982)^{5-n}\approx1$

i.e. you're virtually guaranteed to arrive within the first 40 minutes at least twice.

d. Integrate the PDF to obtain the CDF:

$F_X(x)=\displaystyle\int_{-\infty}^xf_X(t)\,\mathrm dt=\begin{cases}0&\text{for }x$

Then the desired probability is

$F_X(30)-F_X(15)\approx0.950-0.777=0.173$

7 0

3 years ago

WILL GIVE BRAINLIST AS SOON AS I CAN... is this A? i think it is but i might be wrong.​

WILL GIVE BRAINLIST AS SOON AS I CAN... is this A? i think it is but i might be wrong.