the state of California keeps track of how many millions of students are learning English as a second language each year: English Learners are shown in millions in the table.
find an equation for the median fit line

Answer:

put -4,-8 and -6 go on blue and 1, 2, 3 and 7 in red.

Answer:

1364

Step-by-step explanation:

use the calculator

Answer:

64

Step-by-step explanation:

2x × 4y

x=2 and y=4

Put x as 2, and y as 4.

2(2) × 4(4)

4 × 16

= 64

Answer:

Step-by-step explanation:

2x4y = Substitute

Seperate = 2x

               = 4y

= 2(2) = Intercept the values

= 4

= 4(4) = Intercept the values

= 16

= 4*16 = multiply numbers

= 64 = multiply final number

Hope this helped!

Answer:

\( \frac{1}{2} {cm}^{3} \)

Step-by-step explanation:

\(v = whl \\ = \frac{1}{4} \times 2 \times 1 \\ = \frac{2}{4} \\ = \frac{1}{2} {cm}^{3} \)

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

±2

Step-by-step explanation:

This is a biquadratic equation, we must turn it into a quadratic one first before we solve it. So, let's say that x⁴ = y², therefore

\(y = \sqrt{x} \)

and we turn it into the following quadratic equation:

y² - y - 2 = 0

then we solve it the way we solve a normal quadratic equations and find the roots:

D = 1 + 8 = 9

y1,2 = 1 ± 3 = 4, -2

\( \sqrt{x} = y\)

We cannot find the square root of -2, so the solutions are only -2 and 2(because square root of 4 is equal to ±2)

Algorithm 1: Worst case - M questions, linear time complexity. Algorithm 2: Worst case - M questions, linear time complexity. Both algorithms have the same worst-case behavior and time complexity, as they require the same number of questions to be asked.

Algorithm 1: In the worst case, Algorithm 1 will ask a total of M questions, where M is the number of people in the room. This is because for each person, you ask them if they have attended the same number of classes as you. So, if there are M people in the room, you will need to ask M questions in the worst case. In terms of complexity, Algorithm 1 has a linear time complexity since the number of questions asked is directly proportional to the number of people in the room.

Algorithm 2: In the worst case, Algorithm 2 will also ask a total of M questions, where M is the number of people in the room. This is because you only ask the number of classes attended to person 1, who then asks person 2, and so on until person M. Each person asks only one question to the next person in line. So, if there are M people in the room, you will need to ask M questions in the worst case. In terms of complexity, Algorithm 2 also has a linear time complexity since the number of questions asked is directly proportional to the number of people in the room.

To summarize:

- Algorithm 1: Worst case - M questions, linear time complexity.

- Algorithm 2: Worst case - M questions, linear time complexity.

Both algorithms have the same worst-case behavior and time complexity, as they require the same number of questions to be asked.

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The ball takes 3.75 seconds to come back to the ground. The time it takes for the ball to reach the ground can be determined by finding the value of t when y = 0 in the equation y = -\(16t^2\) + 60t.

By substituting y = 0 into the equation and factoring out t, we get t(-16t + 60) = 0. This equation is satisfied when either t = 0 or -16t + 60 = 0. The first solution, t = 0, represents the initial time when the ball is thrown, so we can disregard it. Solving -16t + 60 = 0, we find t = 3.75. Therefore, it takes the ball 3.75 seconds to come back to the ground.

To find the time it takes for the ball to reach the ground, we set the equation of the height, y, equal to zero since the height of the ball at ground level is zero. We have:

-\(16t^2\) + 60t = 0

We can factor out t from this equation:

t(-16t + 60) = 0

Since we're interested in finding the time it takes for the ball to reach the ground, we can disregard the solution t = 0, which corresponds to the initial time when the ball is thrown.

Solving -16t + 60 = 0, we find t = 3.75. Therefore, it takes the ball 3.75 seconds to come back to the ground.

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The work done lifting the bucket and rope is 1465.1 J.

Work done is defined as involving both forces applied to the body and displacement of the body.

Consider a frictionless horizontal floor and a block. This block is acted upon by a constant force F. The action of this force is to move the body d distance in a straight line in the force's direction.

The weight of the water = density × volume

Weight of the water,

\(1000kg/m^3*100cm^3\\=0.1 kg.\)

weight of the bucket  = 5 kg

weight of the rope=2×10-2x=20-2x.

\(leakage=\frac{0.1}{10}*x\)

Total weight= 5 + 20 - 2x - 0.01x   = 25-2.01x

Force=wg

force=9.8(25-2.01x)

Finally; the amount of work spent in lifting the bucket, rope, and water is calculated as follows: the work done is

\(W=\int_0^{10}(25-2.01x)9.8dx\\\\W=9.8[25x-2.01x^2/2]_0^{10}\\\\W=9.8[25*10-2.01*50]\\\\W=1465.1 J.\)

The complete question is-

A 5 kg bucket is lifted from the ground into the air by pulling in 10 meters of rope with a linear density of 2 kg/m at a constant speed. The bucket starts with 100 cm^3 of water and leaks at a constant rate. It finishes draining just as it reaches the 10-meter mark. How much work was spent lifting the bucket, rope, and water?

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The data shows a negative linear association between the number of magazines checked out and the number of books checked out.

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

Scatter plots are used to plot data points on a horizontal and a vertical axis in the attempt to show how much one variable is affected by another.

If one variable tends to increase as the other decreases, the association is negative.

By observing the scaterplot we understand that the value is decreasing as the other value is increasing.

Hence, The data shows a negative linear association between the number of magazines checked out and the number of books checked out.

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You would know who completed first, second, and third, but you would not know the exact difference between the times taken by them. Therefore, such variables cannot be used in mathematical operations. Hence, the answer is the ordinal scale.

After measuring two individuals, a researcher can say that Tom's score is greater than Bill's, but cannot specify how much greater. The measurements must come from a(n) _ordinal_ scale.Ordinal scale is a ranking system where the variables are set in a specific order. In other words, a scale used for categorizing the data into levels or categories based on their magnitude. In such scales, there is no fixed interval or distance between the adjacent categories or levels of the variable. There are only qualitative distinctions.The measurement levels on an ordinal scale can be compared to an ordinal ranking of a marathon. You would know who completed first, second, and third, but you would not know the exact difference between the times taken by them. Therefore, such variables cannot be used in mathematical operations. Hence, the answer is the ordinal scale.

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Answer:

140°

Step-by-step explanation:

The other angle inside is 40 so 180-40 is 140°

The measure of the angle KMU is 140 degrees.

It is formed by two rays or lines that share a common endpoint.

Given that for the triangle KLM, angle KLM is 90° and angle LKM is 50°.

The sum of the angles inside the triangle is 180°.

The angle KML is given by

angle KML = 180-(90+50) = 180 - 140 = 40

The angle KMU = 180 - 40= 140.

Hence the 140° is the measure of the angle KMU.

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Answer:

hi

Step-by-step explanation:

hi

Answer:

distances = 1.5 miles

Step-by-step explanation:

To solve this problem, we must first determine the difference between the times taken to reach school when walking and when cycling. In other words, we have to figure out how much time is saved by cycling rather than walking.

Let's assume that Julian's class starts at 10:30 am.

• When walking, he is 5 minutes late for class. Therefore, he would reach school at 10:35 am.

• When cycling, he is 16 minutes early for class. Hence, he would reach school at 10:14 am.

Therefore, the difference is 35 - 14 = 21 minutes

This means that Julian arrives 21 minutes earlier when cycling than he would if he had walked.

Next, let's assume the distance between Julian's house and school is x miles.

Since \(\mathrm{time \ taken = \frac{distance}{speed}}\), the time taken when walking and cycling is x/3 hours and x/10 hours respectively.

We know that the difference between these times is 21 minutes, i.e. \(\frac{21}{60}\) hours.

Therefore,

\(\frac{x}{3} - \frac{x}{10} = \frac{21}{60}\)

⇒ \(\frac{10x}{30} - \frac{3x}{30} = \frac{21}{60}\)      [Making the denominators of the fractions equal]

⇒ \(\frac{10x-3x}{30} = \frac{21}{60}\)

⇒ \(7x = \frac{21}{60} \times 30\)       [Multiplying both sides of the equation by 30]

⇒ \(7x = 10.5\)

⇒ \(x = \bf 1.5\)

Therefore, the distance between Julian's house and his school is 1.5 miles.

The probability that Marshall wins a prize on his second spin =  0.1875

Consider an event X = the number of spins until Marshall wins a prize.

Given that a prize wheel with 4 segments of equal size, one of which is labeled winner.

So, the sample space n = 4

For given event x, the possible outcomes = 1

Using the formula of probability,

p = x/n

p = 1/4

p = 0.25

So, the probability of success p = 0.25

q = 1 - p

q = 1 - 0.25

q = 0.75

To find the probability that Marshall wins a prize on his 2nd spin.

Using formula, \(P(X = k) = (1 - p)^{k-1}p\)

For  k = 2,

\(P(X = 2) = (1 - 0.25)^{2-1}\times 0.25\)

P(X = 2) = 0.75 × 0.25

P(X = 2) = 0.1875

Thus, the required probability is  0.1875

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Answer:

D

Step-by-step explanation:

The highest number that divides exactly into two or more numbers. 3 and 9 cannot be divided by anything greater than 3.

Answer: i think its D.

Step-by-step explanation:

since the powers are same, ignore 'em , and let's calculate the bases.

-16.(1/2)

-8.1 (upon cancellation)

ans = -8

hope it helps...!!!

Answer: \(12\ \text{min}\)

Step-by-step explanation:

Given

It takes 20 min and 30 min for  a person and his friend to paint a wall individually  i.e.

In 1 min they cover \(\frac{1}{20}\) part and \(\frac{1}{30}\) part of wall respectively.

If the work together, 1 minute work is

\(\Rightarrow \dfrac{1}{20}+\dfrac{1}{30}\\\\\Rightarrow \dfrac{3+2}{60}\\\\\Rightarrow \dfrac{5}{60}\)

Time required will be reciprocal of it

\(\Rightarrow \dfrac{60}{5}=12\ \text{min}\)

tesfa = x

dad = 4x

mom= 4x-1

x+4x+4x-1=101

9x+1=101

9x=100

100/9= 11.1

The length of the shorter part is 12 inches.

The ratio shows how many times one value is contained in another value.

Example:

There are 3 apples and 2 oranges in a basket.

The ratio of apples to oranges is 3:2 or 3/2.

We have,

Length of the line segment = 30 inches.

The ratio of two parts of the line segment = 2 : 3

Now,

2x + 3x = 30 inches

5x = 30

x = 6 inches

Now,

2x = 2 x 6 = 12 inches

3x = 3 x 6 = 18 inches

Thus,

The length of the shorter part is 12 inches.

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Answer:

if an absolute value is equal to a positive number than it have 2 solution, if an absolute value is equal to 0 than it have one solution, if an absolute value is equal to a negative number than it have 0 solution

the total money spent by fred is 41.50 $

the cost of the pot is 29 $

and he buys plants of the remaining money

so, remaining money is, 41.50 - 29 = 12.50$

it is given that the cost of a plant is 2.50$

so, in 12.50$ the number of plant he bought is,

12.50/2.50 = 5 plants

thus, he bought 5 plants.

Answer:

\( \frac{3x}{2} \)

10 minutes of chasing is needed i think

Answer:

(4,3)

Step-by-step explanation:

This doesn't even take any math really, just deductive reasoning :)

We know the line segment stretches from one to 15, meaning there are 14 points on the line as there is (1,2,3, etc.)

14/2 obviously equals 7, so just plug it in from there.

12 is too far up on the line to be less than half, so (12, 3) is wrong

^ this goes for (9, 3) as well

7 is literally the halfway marker, so there is no way it could be (7, 3)

Making the answer (4, 3) because not only is it the last one remaining but it makes the most sense, being less than one half of the segment

Answer:

It would weigh 30.88 grams

Step-by-step explanation:

\(\frac{8}{13} =\frac{19}{x} \\\\8x = 247\\x=30.875\)

The probability Amelie spins either an odd number or a red number is:

P = 4/5

We want to find the probability of spinning a red or odd number, this is equal to the quotient between the number of odd numbers + the number of red numbers and the total number of numbers in the spinner.

Then there are 5 + 3 = 8 numbers that are either red or odd, and a total of 10 numbers, this means that the probability of spinning an odd number or a red number is:

P = 8/10 = 4/5

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Answer:

{(2, 3), (3, 4), (6, 2), (7, 3)}

Step-by-step explanation:

{(2, 3), (3, 4), (6, 2), (7, 3)}

this solution has different domain values : 2, 3, 6, 7