there are 30 students in the classand 24 of these students pass their english test.what percentage of these students pass their test

Answers

Answer 1

Step-by-step explanation:

Total students-30

No.of students pass their English test-24

24/30 X 100=80%

So,80%students pass their test


Related Questions

If a dilation is applied to a triangle, then the image must be
O a congruent triangle.
O a triangle that is flipped over a line of symmetry.
a triangle that is rotated about a given point
O a larger or smaller triangle.

Answers

Answer: it would be a congruent triangle

Step-by-step explanation:

i have no idea but i got it right :)

Plz help!

Arturo purchased 30 shares of stock for $17. He then sold all 30 shares for $21. What was his net profit after an $8 commission?

Answers

Answer:

What's the formula for the wuestion

Math for School: Practice & Problem Solving (LMS graded)
Challenge Abag contains pennies, nickels, dimes, and quarters. There are 50 coins in all of the coins, 10%
han pennies. There are 2 more nickels than pennies How much money does the bag contain?

Math for School: Practice & Problem Solving (LMS graded)Challenge Abag contains pennies, nickels,

Answers

The bag contains $4.60 in coins.

What are coins?

Let's use P, N, D, and Q to represent the number of pennies, nickels, dimes, and quarters, respectively, in the bag.

We know that the total number of coins is 50, so:

P + N + D + Q = 50

We also know that 10% of the coins are pennies, so:

P = 0.1(50)

P = 5

There are 2 more nickels than pennies, so:

N = P + 2

N = 5 + 2

N = 7

Now we can use this information to find the number of dimes and quarters. Since there are 50 coins in total, we can substitute the values we have found for P and N into the first equation:

P + N + D + Q = 50

5 + 7 + D + Q = 50

12 + D + Q = 50

D + Q = 38

We also know the values of P and N, so we can find the total value of all the coins in the bag:

Total value = (value of pennies) + (value of nickels) + (value of dimes) + (value of quarters)

Total value = (5 cents x 5) + (7 cents x 5) + (10 cents x D) + (25 cents x Q)

Total value = 25 + 35 + 10D + 25Q

We can substitute D + Q = 38 into this equation to get:

Total value = 25 + 35 + 10(D + Q)

Total value = 60 + 10(38)

Total value = 460 cents, or $4.60

Therefore, the bag contains $4.60 in coins.

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10. Depression. A study published in the Archives of
a
General Psychiatry in March 2001 examined the
impact of depression on a patient's ability to survive
cardiac disease. Researchers identified 450 people
with cardiac disease, evaluated them for depression,
and followed the group for 4 years. Of the 361
patients with no depression, 67 died. Of the 89
patients with minor or major depression, 26 died.
Among people who suffer from cardiac disease, are
depressed patients more likely to die than
nondepressed ones?
a) What kind of design was used to collect these
data?
b) Write appropriate hypotheses.
c) Are the assumptions and conditions necessary for
inference satisfied?
d) Test the hypothesis and state your conclusion,
e) Explain in this context what your P-value means.
f) If your conclusion is actually incorrect, which type of
error did you commit?

Answers

Among people who suffer from cardiac disease, are depressed patients more likely to die than nondepressed ones?

Yes, they are.

a) The kind of design which was used to collect these data is:

Quantitative Research Design:

b) The appropriate hypotheses is:

People who are depressed are more likely to die from cardiac arrest than people who are not depressed.

c) Are the assumptions and conditions necessary for inference satisfied?

No, it is not. More tests and samples need to be concluded to make sure that it is not a chance occurrence.

d) Test the hypothesis and state your conclusion,

The hypothesis made is consistent with the statistical data but there needs to be more observation and independent variables used.

e) The best explanation of this context based on what your P-value means is:

The measure of probability of the observed difference between the groups of people shows that there is a small chance for the results being as a result of a random chance.

f) If your conclusion is actually incorrect, the type of error which was committed is:

Type II error.

What is a Hypothesis?

This refers to the explanation which is given to a particular phenomena based on the trials and research done of which a conclusion has been made.

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What are the qualifying conditions to avail the SSS sickness benefit?

Answers

The Side-Side-Side (SSS) criterion states that two triangles are similar if "sides of one triangle in two triangles are proportional to (i.e., in the same ratio of) the sides of the other triangle, then their corresponding angles are equal and so the two triangles are comparable."

Look at the triangles in the picture below. We can observe that the triangles' three sets of side pairs are all congruent. "SSS" or "side-side-side" are other names for this. Two triangles are congruent if they have three pairs of congruent sides, according to the SSS requirements for triangle congruence.

Congruence Rule Theorem for SSS

Two triangles are said to be congruent if the corresponding three sides of one triangle match the corresponding three sides of the other triangle exactly.

We shall now demonstrate the aforementioned theorem.

Given: \(\triangle A B C\) and \(\triangle P Q R\) such that AB=PQ, BC=QR and AC=PR.

To prove: \(\triangle A B C \cong \triangle PQR\)

Construction: Let BC be the longest side of \(\triangle A B C\) and so QR is the longest side of \(\triangle P Q R.\)

Draw PS so that \(\angle R Q S=\angle C B A\) and \(\angle Q R S=\angle B C A\).

Join SQ and SR.

In \(\triangle ABC\) and \(\triangle SQR\),

BC=QR Given

\(\angle C B A=\angle R Q S\) By construction

\(\angle B C A=\angle Q R S\) By construction

\(\triangle A B C \cong \triangle SQR\) By ASA congruence

\(\angle A=\angle S\) By CPCTC

AB=SQ By CPCTC

AC=SR

Now, AB=PQ and AB=SQ => PQ=SQ

Similarly, AC=PR and AC=SR => PR=SR

Hence, \(\triangle ABC \cong \triangle PQR,\)

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Is 9% of 998 pages less or larger HURRYYYYYYYY

Answers

Less than, Have Ah Good Day

Answer:

less that is it have good day

the slope of the tangent to the curve y^3x+y^2x^2=6 at (2 1) is

Answers

The slope of the tangent to the curve is -5/14.

Apply implicit differentiation and the product rule to the curve:

\(3y^{2} \frac{dy}{dx} x + y^{3} + 2y\frac{dy}{dx} x^{2} + y^{2}2x = 0\)

Do some rewriting

\(3xy^{2}\frac{dy}{dx} + 2x^{2}y\frac{dy}{dx} + y^{3} + 2xy^{2} = 0\)

Factor and move terms without a  \(\frac{dy}{dx}\)  factor to the right side

\(\frac{dy}{dx}(3xy^{2}+2x^{2}y) = -y^{3} - 2xy^{2}\)

Now divide both sides by  \(3xy^{2}+2x^{2}y\)  and factor where you can

\(\frac{dy}{dx} = \frac{-y^{2}(y+2x)}{yx(3y+2x)}\)

\(\frac{dy}{dx} = \frac{-y(y+2x)}{x(3y+2x)}\)

Now evaluate the given point \((2,1)\)

\(\frac{dy}{dx} = \frac{-1(1 + 2(2))}{2(3(1) + 2(2))} = \frac{-1(5)}{2(7)} = \frac{-5}{14}\)

Therefore, the slope of the tangent to the curve is -5/14.

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Help Me please11111111

Help Me please11111111

Answers

Answer:

The first option im pretty sure

Step-by-step explanation:

Determine if this graph is an example of a function.

Determine if this graph is an example of a function.

Answers

Answer: Relation

Step-by-step explanation:

The graph fails the vertical line test.

Determine if this graph is an example of a function.

one sandwich and a drink cost $7.95. at the same price, three sandwiches and a drink cost $19.95. what is the price of a drink?

Answers

The price of drink is found as $1.95.

Explain the substitution method?This substitution method is typically used in mathematics to solve an equation system. In this approach, you solve an equation for one variables first, then you enter its value into the other equation.

Let the cost of one sandwich be 'x'.

Let the cost of one drink be 'y'.

Then,

x + y = $7.95.

x = 7.95 - y.

And,

3x + y = 19.95

Put value of x

3(7.95 - y) + y = 19.95

23.85 - 3y + y = 19.95

2y = 3.9

y = 1.95

Thus, the price of one drink is found as $1.95.

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(T/F) the matrix a and its transpose, ar, have different sets of eigenvalues.

Answers

The given statement, "The matrix a and its transpose, ar, have different sets of eigenvalues" is False.

The proof for this is that if λ is an eigenvalue of A with corresponding eigenvector x, then we have Ax = λx.

Taking the transpose of both sides, we get x^T A^T = λx^T. Since x^T is a row vector and A^T is a square matrix, we can see that λ is also an eigenvalue of A^T with the corresponding eigenvector x^T. Therefore, A and A^T have the same set of eigenvalues.

This characteristic is significant in many linear algebra applications because it allows us to simplify eigenvalue computations by dealing with the transpose of a matrix, which can be easier to manage in some circumstances. It also offers a valuable link between a matrix's eigenvalues and those of its transpose, which may be used in certain arguments and methods.

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Neeedddd answweerrrr plaeeessee

Neeedddd answweerrrr plaeeessee

Answers

9514 1404 393

Answer:

  B.  log_b(a) - log_b(d)

Step-by-step explanation:

The applicable rule of logarithms is ...

  log(a/b) = log(a) -log(b)

All the logs need to have the same base.

__

Here, the base is 'b', but the rule still applies:

  \(\log_b{\dfrac{a}{d}}=\log_b{(a)}-\log_b{(d)}\)

What is the proportion you used to solve: what percentage of 35 is 28?

Answers

Answer:

divide each side by 7 equals 4/5

Answer:

80 %

Step-by-step explanation:

on a 1375-mile flight, an airplane's average speed is 550 miles per hour. the flight is within a single time zone and leaves at 10 am. What time will the airplane arrive at its destination

Answers

The time the airplane will arrive at its destination is; 12:30 pm

What is the relationship between distance and time?

The relationship between distance, time and speed is;

Speed = Distance/time

Now, we are given;

Distance = 1375 miles

Speed = 550 miles per hour

Thus;

Time = Distance/Speed

Time taken = 1375/550

Time taken = 2.5 hours

Thus, if he leaves by 10 am, then the time to arrive is;

10 am + 2.5 hours = 12:30 pm

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O Assignment is
eBookwork
Consider the conjecture, "Any number divisible by 2 is also divisible by 4." Is each of the numbers 12, 19, 22, 28, and 30 a counterexample of the conjecture?
Complete the following table.

O Assignment iseBookworkConsider the conjecture, "Any number divisible by 2 is also divisible by 4."

Answers

Please find attached a diagram with the completed table

In order to determine which number is  a counterexample of the conjecture, we are to divide each number by 2 and 4. A counterexample of this conjecture would only be divisible by either 2 or 4 but not both of them

Dividing the numbers by 2

12 / 2 = 6

19 / 2 = 9.5

22 / 2 = 11

28 / 2 = 14

30 / 2 = 15

Dividing the numbers by 4

12 / 4 = 3

19 / 4 = 4.75

22 / 4 = 5.5

28 / 4 = 7

30 / 4 = 7.5

22 and 30 are counterexamples because they are divisible by 2 but not by 4

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O Assignment iseBookworkConsider the conjecture, "Any number divisible by 2 is also divisible by 4."

A sequence starts with: 312500, 62500, 12500, 2500
Calculate the next four terms!
My brain isnt working, please help

Answers

The next four terms in the geometric sequence are 500, 100, 20 and 4

What is Sequence

Sequence is a set or series of related items or events in a particular order. It can refer to a number of different things, such as a set of numbers, a set of events, or a set of objects. In mathematics, a sequence is a series of numbers or other mathematical objects that follow a particular pattern.

In the given problem, the sequence is;

312,500, 62,500, 12,500, 2,500

This is most likely a geometric sequence and we have to find the common ratio.

r = 62500 / 312500 = 0.2 or 2500 / 12500 = 0.2

The common ratio is 0.2

The next term will be the 5th term

Tₙ = arⁿ⁻¹

T₅ = ar⁴

a = first term = 312500

T₅ = 312500(0.2)⁴

T₅ = 500

The next term is 6th term

T₆ = ar⁵

T₆ = 312500(0.2)⁵

T₆ = 100

T₇ = ar⁶

T₇ = 312500(0.2)⁶

T₇ = 20

T₈ = 312500(0.2)⁷

T₈ = 4

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Find the value of x. 8,13,x

Answers

Answer:

x=18

Step-by-step explanation:

Key skills needed: Arithmetic Sequences, Addition

1) We have a sequence of 8,13,x

2) To find the number being added every time, we do 13-8. This is 5.

3) This means x would be 13+5

4) 13+5 is 18 so x is 18.

Hope you understood and have a nice day!! :D

Rectangle ABCD has a perimeter of 22 units. The coordinates of the rectangle's vertices are A(-4,5), B(3,x), and D(-4,x). Which could be the value of x

Answers

Answer: 20

Step by step explanation:
(2,-3) to (4,-3) = 2
(4,-3) to (4,5) = 8
(4,5) to (2,5) = 2
(2,5) to ( 2,3) = 8

Total: 20

Through the given information in the question, the value of x could be 12.

What is the perimeter of a rectangle?

The perimeter of a rectangle is the total distance around the outside of the rectangle. It is calculated by adding together the length of all four sides of the rectangle. If the length of the rectangle is denoted by 'l' and the width is denoted by 'w', then the formula for the perimeter (P) of the rectangle is:

P = 2l + 2w

Alternatively, the formula can also be written as:

P = 2(l + w)

The perimeter of a rectangle is given by the sum of the lengths of all four sides. Therefore, we can write:

AB + BC + CD + DA = 22

We know that AB = CD = 9 since they are opposite sides of the rectangle. We also know that DA = BC = x - 5, since they are the other two sides of the rectangle.

Substituting these values into the perimeter equation, we get:

9 + x - 5 + 9 + x - 5 = 22

Simplifying the equation, we get:

2x - 2 = 22

2x = 24

x = 12

Therefore, the value of x could be 12.

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if a stream drops 15 meters in 15 kilometers, what is its gradient?

Answers

The gradient of the stream is 1 meter per kilometre, which means that the stream drops 1 meter for every kilometre travelled. This is a relatively gentle slope and suggests that the stream is not flowing rapidly or eroding its bed very quickly.

The gradient of a stream is a measure of its steepness and is calculated by dividing the change in elevation by the distance travelled. In this case, the stream drops 15 meters in 15 kilometres, which means that the gradient can be calculated as follows:
Gradient = Change in elevation ÷ Distance travelled
Gradient = 15 meters ÷ 15 kilometers
Since we need to express the gradient in terms of meters per kilometre, we can simplify the above equation as follows:
Gradient = (15 meters ÷ 15,000 meters) × 1,000
Gradient = 1 meter per kilometer
Therefore,  understanding the gradient of a stream is important for a range of activities, including flood control, erosion management, and habitat restoration. By monitoring changes in the gradient over time, scientists and engineers can gain insights into the health and behaviour of streams and develop strategies to protect them.

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Is it possible to create a regular tessellation using a regular decagon? Explain. Yes, 2 decagons with a common vertex will have interior angle measures that sum to 360. Yes, 3 decagons with a common vertex will have interior angle measures that sum to 360. Yes, all of the angles and sides of each decagon are congruent. No, a tessellation of 2 decagons will have a gap, and a tessellation of 3 decagons will overlap.

Answers

Answer:

The answer on edge 2020 is D.No, a tessellation of 2 decagons will have a gap, and a tessellation of 3 decagons will overlap.

Step-by-step explanation:

I took it and passed!

Answer:

D is right on edge

Step-by-step explanation:

just did it

Find an equation for the conic that satisfies the given conditions. ellipse, foci (0, 3), (0, 7), vertices (0, 0), (0, 10)

Answers

An equation for the ellipse that satisfies the given conditions is  \(\frac{x^2}{25}+\frac{(y-5)^2}{21}=1\)

For given question,

We need to find an equation of ellipse having foci (0, 3), (0, 7), vertices (0, 0), (0, 10)

The x -coordinates of the vertices and foci are the same, so the major axis is parallel to the y -axis.

Thus, the equation of the ellipse will have the form

\(\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1\)

First, we identify the center,  (h, k) . 

The center is halfway between the vertices, (0, 0), (0, 10)

 Applying the midpoint formula, we have:

\(\Rightarrow (h,k)=(\frac{0+0}{2} ,\frac{0+10}{2} )\\\\\Rightarrow (h,k)=(0,5)\)

Next, we find  a² . 

The length of the major axis,  2a , is bounded by the vertices.

We solve for  'a'  by finding the distance between the y-coordinates of the vertices.

⇒ 2a = 10 - 0

⇒ 2a = 10

⇒ a = 5

⇒ a² = 25

Now we find  c² . 

The foci are given by  (h, k ± c)

So,  (h, k - c) = (0, 3) and  (h, k + c) = (0, 7)

k - c = 3

k + c = 7

After solving above system of equations we have,

c = 2 and k = 5

So, c² = 4

Next, we solve for  b²  using the equation  c² = a² - b²

⇒ 4 = 25 - b²

⇒ b² = 25 - 4

⇒ b² = 21

Now, we substitute the values found for  h, k, a², and  b²  into the standard form equation for an ellipse:

\(\Rightarrow \frac{(x-0)^2}{25}+\frac{(y-5)^2}{21}=1\\\\\Rightarrow \frac{x^2}{25}+\frac{(y-5)^2}{21}=1\)

Therefore, an equation for the ellipse that satisfies the given conditions is  \(\frac{x^2}{25}+\frac{(y-5)^2}{21}=1\)

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D is the centroid of AABC. What is the value of x when BD = 2x + 40 and BF = 18x?

Answers

The value of x is -20.

In a triangle, the centroid is the point where the three medians intersect. The centroid divides each median into segments with a ratio of 2:1, where the longer segment is towards the vertex.

Let's consider triangle ABC with centroid D. The medians are AD, BD, and CD. Assuming that D is the midpoint of BC, we can write the following equation based on the median property:

BD = 2 * CD

Now, we are given that BD = 2x + 40 and BF = 18x. Since D is the centroid, we can assume that CD = 2x + 40 (as it is twice the length of the shorter segment BD).

Using the property of the centroid, we can write:

BD = 2 * CD

2x + 40 = 2 * (2x + 40)

2x + 40 = 4x + 80

Simplifying the equation, we have:

2x - 4x = 80 - 40

-2x = 40

x = -20

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how would you factor 12b^4+3b^2​

Answers

Answer:

3b²(4b²+1)

Step-by-step explanation:

You can factor out a 3b²

3b²(4b²+1)

Answer:

Hey friend, need some help if you factor 3b^2 out of 12b^4+3b^2, in other words, 3b^2 (4b^2 + 1)

Show your work:

3b^2 (3b^2 / 12b^4) + (3b^2 / 3b^2)

PLZ give 5 stars, heart, and brainlyest

∣9.78−9.806∣/9.806×100%=

Answers

The evaluated value of the given expression, when converted to 150%, is approximately 39.8%.

To evaluate the given expression |9.78 - 9.806| / 9.806 × 100%,

we follow these steps:

Calculate the absolute difference between 9.78 and 9.806: |9.78 - 9.806| = 0.026

Divide the absolute difference by 9.806: 0.026 / 9.806 ≈ 0.0026509197

Multiply the result by 100% to express it as a percentage: 0.0026509197 × 100% ≈ 0.26509197%

Convert the result to 150% by multiplying it by 150 / 100: 0.26509197% × 150 = 39.7637964%

Round the final answer to one decimal place: 39.8%

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2. Write in standard form: one hundred dollars and fourteen cents

2. Write in standard form: one hundred dollars and fourteen cents

Answers

Answer:

$100.14

Step-by-step explanation:

convert to a number

Given the following returns, what is the variance? Year 1 = 16%;
year 2 = 6%; year 3 = -25%; year 4 = -3%.
.0297
.0209
.0344
.0268
.0306

Answers

The variance of the given returns is approximately 0.1475. The variance measures the dispersion or variability of the returns from the mean return.

To calculate the variance, we need to follow a few steps:

Calculate the mean (average) return:

Mean = (Year 1 + Year 2 + Year 3 + Year 4) / 4

= (16% + 6% + (-25%) + (-3%)) / 4

= -6% / 4

= -1.5%

Calculate the squared deviations from the mean for each year:

Deviation from mean for Year 1 = 16% - (-1.5%) = 17.5%

Deviation from mean for Year 2 = 6% - (-1.5%) = 7.5%

Deviation from mean for Year 3 = -25% - (-1.5%) = -23.5%

Deviation from mean for Year 4 = -3% - (-1.5%) = -1.5%

Square each deviation:

Squared deviation for Year 1 = (17.5%)^2 = 0.0306

Squared deviation for Year 2 = (7.5%)^2 = 0.0056

Squared deviation for Year 3 = (-23.5%)^2 = 0.5525

Squared deviation for Year 4 = (-1.5%)^2 = 0.000225

Calculate the average of the squared deviations:

Variance = (0.0306 + 0.0056 + 0.5525 + 0.000225) / 4

= 0.589925 / 4

≈ 0.1475

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A study is done to determine the attitudes of male university students towards careers. The researcher interviews 100 of the male students enrolled in a first-year course at the university. What is the sample in this situation?
all university students
male university students
the male students taking this course
the 100 male students interviewed

Answers

Answer:

I need the answer

Step-by-step explanation:

Answer:

Step-by-step explanation:

The sample is the part of the population that somebody wants to study. therefore, the sample is the 100 male students interviewed

Divide 1 day in the ratio 1:2

Answers

1/3day and 2/3 day
Hope I'm roght

What is the measure of LEFD?

What is the measure of LEFD?

Answers

The measure of ∠EFD as shown in the diagram is 60.5°.

What is a tangent line?

Tangent line to a plane curve at a given point is the straight line that just touches the curve at that point.

Note: The tangent line of a circle and the radius meets at an angle of 90°

To calculate the value of ∠EFD, we use the theorem of the angle susbtends by an arc of a circle.

From the diagram,

∠EFD = ∠DAE/2 (The angle which an arc subtends at the center of a circle is twice that substends at every points of the circuference of the circle)................. Equation 1

First we need to look for ∠DAE

∠DAE = 360-(∠D+∠E+∠C)................. Equation 2

From the diagram,

∠D = ∠E = 90° (Angle formed by a tangent line and the radius of a circle)∠C = 59°

Substitute these values into equation 2

∠DAE = 360-90-90-59∠DAE = 121°

Substitute the value of ∠DAE into equation 1

∠EFD = 121/2∠EFD  = 60.5°

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"in one week, buy movie "theatres each add an average of 9200 tickets for Movie A. About * 3.6 * 10 ^ 2 total tickets were sold at the tintors during the week. An article claims that about va% of all tickets sold during the week were for Movie A D hostly our w

Answers

No, the given the claim that 25% of all tickets sold were for Movie A is not accurate.

Based on the given data, the total number of tickets sold for Movie A in one week can be calculated as follows, Total tickets sold for Movie A = (4100 theaters) x (2200 tickets per theater per week) = 9,020,000 tickets

This number is only about 25% of the total tickets sold during the week if the total number of tickets sold is 3.6 x 10^7. The number of total tickets sold is greater. Therefore, the claim that 25% of all tickets sold were for Movie A is inaccurate.

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--The complete question is, In one week, about 4100 movie theaters each sold average of 2200 tickets for Movie A. About 3.6×10^7 total tickets were sold at the theaters during the week. An article claims that about 25% of all tickets sold during the week were for Movie A. Is this claim accurate? Justify your answer.--

Other Questions
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