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3 years ago

Pls answer i will give brainliest pls

Mathematics

1 answer:

Gelneren [198K]3 years ago

5 0

Answer:

Step-by-step explanation:

In the slope intercept equation of the line the number that not multiplies the x or the y indicates where the line intercept the y axis

so in this cas the line intercept the y axis in the point (0,2)

so the answer is B

You might be interested in

Henry wants to know the height of an outdoor sculpture. He measures the shadow of the outdoor sculpture and finds that it is 12

coldgirl [10]

Height of sculpture/shadow of sculpture = height of tower/shadow of tower

x/12 = 12/16
16x = 12*12
16x = 144
x = 144/16
x = 9

The sculpture is 9 meters tall

3 0

3 years ago

the cooking club made some pies to sell at a basketball game to raise money for the new math books. The cafeteria contributed th

Ne4ueva [31]

Answer:

The club made 5 pies

Step-by-step explanation:

Total pieces=40

40/5 (cuz each pie was cut in 5 pieces)

40/5=8 (Total of pies sell)

But they say the cafeteria contributed with 3 pies so:

8-3= 5

3 0

4 years ago

Read 2 more answers

If you get it right I’ll give brainliest!

kifflom [539]

Answer:

Vertical

Step-by-step explanation:

We can see that the line is parallel to the y-axis. This is an indicator that the line is vertical.

On the other hand, if the line was parallel to the x=axis, it would indicate that it is horizontal.

I hope this helps!

3 0

3 years ago

Five individuals from an animal population thought to be near extinction in a certain region have been caught, tagged, and relea

Talja [164]

Answer:

a) For this case the random variable X follows a hypergometric distribution.

b) $E(X)= n\frac{M}{N}=10 \frac{5}{25}=2$

$Var(X)=n \frac{M}{N}\frac{N-M}{N}\frac{N-n}{N-1}=10\frac{5}{25}\frac{25-5}{25}\frac{25-10}{25-1}=1$

c) $P(X=0)= \frac{(5C0)(25-5 C 10-0)}{25C10}=\frac{1*184756}{3268760}=0.0565$

d) $P(X=5)= \frac{(5C5)(25-5 C 10-5)}{25C10}=\frac{1*15504}{3268760}=0.00474$

Step-by-step explanation:

The hypergometric distribution is a discrete probability distribution that its useful when we have more than two distinguishable groups in a sample and the probability mass function is given by:

$P(X=k)= \frac{(MCk)(N-M C n-k)}{NCn}$

Where N is the population size, M is the number of success states in the population, n is the number of draws, k is the number of observed successes

The expected value and variance for this distribution are given by:

$E(X)= n\frac{M}{N}$

$Var(X)=n \frac{M}{N}\frac{N-M}{N}\frac{N-n}{N-1}$

a. What is the distribution of X?

For this case the random variable X follows a hypergometric distribution.

b. Compute the values for E(X) and Var(X)

For this case n=10, M=5, N=25, so then we can replace into the formulas like this:

$E(X)= n\frac{M}{N}=10 \frac{5}{25}=2$

$Var(X)=n \frac{M}{N}\frac{N-M}{N}\frac{N-n}{N-1}=10\frac{5}{25}\frac{25-5}{25}\frac{25-10}{25-1}=1$

c. What is the probability that none of the animals in the second sample are tagged?

So for this case we want this probability:

$P(X=0)= \frac{(5C0)(25-5 C 10-0)}{25C10}=\frac{1*184756}{3268760}=0.0565$

d. What is the probability that all of the animals in the second sample are tagged?

So for this case we want this probability:

$P(X=5)= \frac{(5C5)(25-5 C 10-5)}{25C10}=\frac{1*15504}{3268760}=0.00474$

4 0

4 years ago

Y=4x<br> x+y=5 use substitution method

dalvyx [7]

Answer:

x = 1, y = 4

Step-by-step explanation:

y = 4x

x + y = 5

Since 4x is equal to the variable y, we can substitute it in for y in the second equation.

x + (4x) = 5

Solve for x.

x + 4x = 5

5x = 5

5x/5 = 5/5

x = 1

Now that we have solved for x, we need to solve for y.

y = 4x

x = 1 so substitute the x with 1.

y = 4(1)

y = 4

We can plug both of our answers into any one of the given equations to check our work

x + y = 5

x = 4 and y = 1

4 + 1 = 5

5 = 5

Our answers check out!

6 0

3 years ago