If for an A.P. s15 = 147 and s14= 123 find t15​

The total ways in which the student can readd the books are 1512 ways.

What is Combination?

A combination in mathematics is a selection of elements from a set with distinct members, where the order of selection is irrelevant (unlike permutations).

Solution:

Since reading 2 american novels is compulsory

The student therefore needs to read only two more novels

It can be either American Novels or English Novels

Ways to read American Novel = 7C2

Ways to read English Novel = 7C2

Total Ways = 9C2 * (7C2 + 7C2)

Total Ways = 36 * (42)

Total Ways = 1512 ways

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Answer:

$30

Step-by-step explanation:

If 3 calendars cost $18, then each should cost 18/3=$6.

6x5=$30 for 5 calendars.

Answer:

5.267

Step-by-step explanation:

Let's do long division to figure this out.

Answer: 5.26666666667

Step-by-step explanation:

If your asking for the decimal answer, than it is 5.26666666667, or you can round it to 5.3. :)

the probability of a man's ticket being chosen is 31/200, or 0.155 as a decimal.

To calculate the probability, we need to find the probability of a man's ticket being chosen out of all the tickets purchased.

Total number of tickets purchased = 79 (children) + 90 (women) + 31 (men) = 200 tickets

Probability of a man's ticket being chosen = Number of men's tickets / Total number of tickets = 31/200

So, the probability of a man's ticket being chosen is 31/200, or 0.155 as a decimal.

In this situation, we have calculated the probability of a man's ticket being chosen from all the tickets purchased by children, women, and men. The probability is found by dividing the number of men's tickets (31) by the total number of tickets (200).  

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The standard deviation of f$ ar{x},f$ is usually called the "sample standard deviation".

This is a commonly used statistical measure that represents the amount of variation or dispersion within a set of data. It is calculated by taking the square root of the variance, which is the average of the squared differences from the mean.

The sample standard deviation is often used to compare the variability of different sets of data and to determine the significance of differences between them. Financial contracts known as derivatives are those entered into by two or more parties and whose value is derived from an underlying asset,

collection of assets, or benchmark. A derivative may be traded over-the-counter or on an exchange. Derivative prices are based on changes in the underlying asset.

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Answer:

3 = 1/6 chance 4 = 1/6 chance

Step-by-step explanation:

BECAUSE there are 6 numbers on a number cube and there is no ganruntee that it will land on 4 or 3 so its a 1/6 chance that it will land on them.

Answer:

1/6

Step-by-step explanation:

A dice (Number cube in this case) has six sides, in only which one side is three and one side is 4.

Answer:

14 square inches

Step-by-step explanation:

Since, three one inch cubes are stacked.

Therefore,

l = 1 in

w = 1 in

h = 3 in

Surface area of the composite figure

= 2(lw + wh + lh)

= 2( 1*1 + 1*3 + 1*3)

= 2 (1 + 3 + 3)

= 2 * 7

= 14 square inches

Answer:

baiBsiasbisvdxhsbhssj

Answer:

-1/7

is the answer of your question

The original weight of the sample is determined as 3.24×10⁻⁶ grams.

If each batch weighs 3.6×10⁻⁷ grams, then the total weight of all 9 batches can be found by multiplying the weight of one batch by the number of batches.

Total weight = 9 × 3.6×10⁻⁷ grams

= 32.4×10⁻⁷ grams

To express this number in scientific notation, we can move the decimal point one place to the left and adjust the exponent accordingly:

Total weight = 3.24×10⁻⁶ grams

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In order to find the equation that has an output of 4 for an input of 16, let's use the value of x = 16 in each equation and calculate the value of y:

So the correct option is the fourth one: y = x - 12

a. In a random sample of 1,000 births, the expected number of births that take place by Caesarian section is:

E(X) = n*p = 1,000 * 0.32 = 320 births

Therefore, on average, 320 births out of 1,000 will take place by Caesarian section.

b. The variance of the number of Caesarian section births in a sample of 1,000 births is:

Var(X) = np(1-p) = 1,000 * 0.32 * (1-0.32) = 217.60

The standard deviation is the square root of the variance:

SD(X) = sqrt(Var(X)) = sqrt(217.60) = 14.76

Therefore, the standard deviation of the number of Caesarian section births in a sample of 1,000 births is 14.76.

c. To form an interval that is likely to contain the number of Caesarian section births in a sample of 1,000 births, we can use the normal distribution and the central limit theorem. Since n*p = 320 is greater than 10, we can assume that the distribution of the number of Caesarian section births in a sample of 1,000 births is approximately normal.

The 95% confidence interval for the number of Caesarian section births is:

320 ± 1.96*(14.76) = (291.16, 348.84)

Therefore, we can be 95% confident that the number of Caesarian section births in a sample of 1,000 births will be between 291 and 349.

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When we want to test the hypothesis that the mean score on campus 1 is higher than on campus 2, the null hypothesis will be that the mean score on campus 1 is not higher than on campus 2.

Given that we want to test the hypothesis that the mean score on campus 1 is higher than on campus 2.

We are required to find the null hypothesis when we test the hypothesis that the mean score on campus 1 is higher than on campus 2.

Hypothesis is the statement which is tested for its validity. When we want to form null hypothesis then we want to think opposite to the hypothesis that is being tested.

We have to test the hypothesis that the mean score on campus 1 is higher than on campus 2 so we have to make null hypothesis be the mean score on campus 1 is not higher than on campus 2.

Hence when we want to test the hypothesis that the mean score on campus 1 is higher than on campus 2, the null hypothesis will be that the mean score on campus 1 is not higher than on campus 2.

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Answer:

The third answer is correct.

Step-by-step explanation:

You are going to translate the smaller quadrilateral (4 sided figure) to the larger quadrilateral.  Then you need the scale factor from the smaller figure to the larger.  

Side EF times the scale factor will give you side AB.  Let's call the scale factor s then our equation would be:

EF x s = AB  To find s divide both sides by EF

\(\frac{EF(s)}{EF}\) = \(\frac{AB}{EF}\)

s = \(\frac{AB}{EF}\)  This is our scale factor.

Helping in the name of Jesus.

The function that represents the number of weeks with the height of the tomato plants is 4t - 25y = -150.

When the week has started, the height of the plant in inches is 6 inches.

So, one point can be (0,6).

Now, it is said that the plants grows at a rate of 16% per inches for several months.

So, it means that the slope of the equation is 0.16.

Now, we can use the point slope form of the line.

So, the required equation of the line is,

(y-6)/(t-0) = 0.16

y-6 = 0.16t

16t - 100y = -600

4t - 25y = -150

So, the above equation of line is the function that will relate number of weeks with the height of the plant.

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Answer:

Cumulative Frequency:

The sum of all the frequencies for all classes is equal to the number of elements in the given data and that summation is termed as the cumulative frequency which defines the number of entries of that statistical data.

The sum of relative frequencies is also equal to one, since the sum of all fractional parts must equal the whole.

Step-by-step explanation:

Let's examine the given statements and determine if they are sometimes, always, or never true.

1. A square is a rectangle. (Always true)

  Explanation: A square is defined as a quadrilateral with all sides equal in length and all angles equal to 90 degrees. A rectangle is defined as a quadrilateral with all angles equal to 90 degrees. Since a square satisfies the definition of a rectangle (having all angles equal to 90 degrees), it is always true that a square is a rectangle.

2. A rectangle is a square. (Never true)

  Explanation: A rectangle is defined as a quadrilateral with all angles equal to 90 degrees, but it does not necessarily have all sides equal in length. A square, on the other hand, is a special type of rectangle where all sides are equal in length. Since a rectangle can have unequal side lengths, it is never true that a rectangle is a square.

3. A rhombus is a square. (Sometimes true)

  Explanation: A rhombus is a quadrilateral with all sides equal in length, but its angles are not necessarily equal to 90 degrees. A square is a special type of rhombus in which all angles are 90 degrees. Therefore, if a rhombus has all angles equal to 90 degrees, it becomes a square. However, if a rhombus has at least one angle different from 90 degrees, it is not a square. Hence, it is sometimes true that a rhombus is a square.

4. A square is a rhombus. (Always true)

  Explanation: A square is a quadrilateral with all sides equal in length and all angles equal to 90 degrees. A rhombus is a quadrilateral with all sides equal in length, but its angles are not necessarily equal to 90 degrees. Since a square satisfies the definition of a rhombus (having all sides equal in length), and all its angles are 90 degrees, it is always true that a square is a rhombus.

5. A parallelogram is a rectangle. (Sometimes true)

  Explanation: A parallelogram is a quadrilateral with opposite sides parallel. A rectangle is a quadrilateral with all angles equal to 90 degrees. While all rectangles are parallelograms (since their opposite sides are parallel), not all parallelograms are rectangles unless they have all angles equal to \(90\) degrees. Therefore, it is sometimes true that a parallelogram is a rectangle.

Summary:

1. Always true: A square is a rectangle.

2. Never true: A rectangle is a square.

3. Sometimes true: A rhombus is a square.

4. Always true: A square is a rhombus.

5. Sometimes true: A parallelogram is a rectangle.

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Given the following function:

The 0.02 in the equation represents the value of the growth rate in decimal form.

Therefore, in percentage form, the growth rate is:

0.02 x 100 = 2%

The answer is 2%

Answer:

ok i am here to explain :)

Step-by-step explanation:

So, for #6, all we do is -8+6, since it said sum, so we add, and we get -2. this is 2 more than -4, and to check, all we would have to do is -4+2, which equals -2.

for #7, all we have to do is -8+(-6), since again it says sum so we add. the sum of these values are -14. for the second part, because it says "product" this means we multiply! and when we multiply -2 by 4, we get -8. this would lead us to believe that the sum is 4 less than. we can check it by subtracting positive 4 from the  negative 8, or -8-4, which would give us -12.

for #11, all i really did was plug it into a calculator, and for the first one, i got 4, and for the second one i got -4. this would give us a difference of 8, and to check all we would have to do is add the 8 to the negative 4, or -4+8=4.

Hope this helps, please mark as brainlest.

Answer:

6: -2

7: 14

11: -4

Step-by-step explanation:

6:

-8 + 6 = -2

-2 is bigger than -4 because it is closer to 0. If it was regular numbers, like 2 and 4, 4 would be larger! :)

7:

-8 - 4 = -12

4 - 2 = 2

The correct answer is 14 because there are 14 numbers between 4 and -12 :)

11:

(–3 + 5)^2

2^2

4

–(–3 + 5)^2

-2^2

-4

The correct answer is 4 because it is a positive number and positive numbers are ALWAYS bigger than negative numbers :)

Have a great day!!

Please rate and mark brainliest!!

The cost of 11.5 sheets of stickers costs is $40.25.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, four sheets of stickers cost $14.

Now, the cost of 1 sheet of stickers is 14/4

= $3.5

The cost of \(11\frac{1}{2}\) =11.5 sheet of stickers is

11.5×3.5

= $40.25

Therefore, the cost of 11.5 sheets of stickers costs is $40.25.

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The correct answer is iii. 2n - c, where c is a constant.Kolmogorov complexity refers to the measure of the shortest possible description of a string in terms of computational resources required to generate it.

An incompressible string is a string that does not have any patterns or regularities that can be exploited to generate a shorter description.

For an incompressible string of length n, the Kolmogorov complexity is expected to be close to the length of the string itself. In other words, the shortest possible description of an incompressible string of length n would be of similar length to the string itself.

The option iii. 2n - c represents a bound where the constant c accounts for the details of the specific computation model used for measuring Kolmogorov complexity. It is a conservative estimate of the Kolmogorov complexity of an incompressible string, as it allows for some additional constant overhead in the description length beyond the length of the string itself.

Options i. logn - c and ii. n - c are not accurate estimations for the Kolmogorov complexity of incompressible strings. The logarithmic term in option i. is not suitable for incompressible strings because it suggests that the complexity decreases as the string length increases, which is not the case. Option ii. suggests that the complexity is simply the length of the string minus a constant, which does not account for the inherent complexity of the string itself.

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answer: 5.34

Step by step explanation 12.75 + 13.95=26.7

20% of 26.7 is 5.34

look at he picture it is the first one just read at the bottom and that is the answer

Step-by-step explanation:

The points (x, y) on the curve C where the tangent line TL is vertical or horizontal are: (2, 0), (-2, 0), (0, 4), and (0, -4).

To find the points (x, y) on the curve C defined by the parametric equations x(t) = 2cos(t) and y(t) = 4sin(t) where the tangent line TL is vertical or horizontal, we need to find the values of t that correspond to these points.

For the tangent line to be vertical, the derivative dy/dx must be undefined. In other words, the slope of the tangent line must be infinite. So, we look for the values of t where dx/dt = 0.

We have x(t) = 2cos(t), so dx/dt = -2sin(t). Setting dx/dt = 0, we get -2sin(t) = 0. This equation is satisfied when sin(t) = 0, which occurs at t = 0, π, 2π, etc.

Substituting these values of t back into the parametric equations, we find the corresponding points (x, y): At t = 0: x(0) = 2cos(0) = 2, y(0) = 4sin(0) = 0. So, the point (2, 0) is on the curve.

At t = π: x(π) = 2cos(π) = -2, y(π) = 4sin(π) = 0. Thus, the point (-2, 0) is on the curve. Similarly, at t = 2π, we get the points (2, 0) and (-2, 0).

For the tangent line to be horizontal, the derivative dy/dx must be zero. In other words, the slope of the tangent line must be zero. So, we look for the values of t where dy/dt = 0.

We have y(t) = 4sin(t), so dy/dt = 4cos(t). Setting dy/dt = 0, we have 4cos(t) = 0. This equation is satisfied when cos(t) = 0, which occurs at t = π/2, 3π/2, etc.

Substituting these values of t back into the parametric equations, we find the corresponding points (x, y): At t = π/2: x(π/2) = 2cos(π/2) = 0, y(π/2) = 4sin(π/2) = 4. So, the point (0, 4) is on the curve.

At t = 3π/2: x(3π/2) = 2cos(3π/2) = 0, y(3π/2) = 4sin(3π/2) = -4. Thus, the point (0, -4) is on the curve. Similarly, at t = 5π/2, we get the points (0, 4) and (0, -4).

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Answer:

810!

Hope this helped! Have a nice day!!

Answer:

30% of 2,700 is 810

Step-by-step explanation:

proportions

0.30×2,700

810

The solution of the system of equations is as below

(x, y, z) = (-18, -1, -4)

Substitute the value of z = -4 in the second equation:

3y - (-4) = 1

3y + 4 = 1

3y = -3

y = -1

Now that we know the value of y, we can substitute it and the given value of z in the first equation to solve for x:

x = 2y + 4z

= 2(-1) + 4(-4)

= -2 - 16

= -18

Therefore, the solution to the system of equations is:

(x, y, z) = (-18, -1, -4)

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Answer:

2^8

Step-by-step explanation:

(4*2^5)÷(2^3 *1/16)

\(\left ( 4\times 2^5 \right )\div \left ( 2^3\times \frac{1}{16} \right )\\\\2^7 \div 2^{-1}\\\\2^7\times 2^1\\\\2^8\)

Answer:

7.56

Step-by-step explanation:

Yo Wassup? >:D

You answer is $6.00!

Hopefully this helps! :D

Answer:

625

Step-by-step explanation:

with long division, you just need to remember these five steps, divide, multiply, subtract, bring it down, and repeat.

hope this helps :3

if it did pls mark brainliest

The number 2000 divided by 3.2, then the quotient is 625.

To perform long division with 2,000 divided by 3.2, follow these steps:

Step 1: Write down the division problem.

2,000 ÷ 3.2

Step 2: Convert the divisor to a whole number.

Since the divisor is a decimal, multiply both the dividend and divisor by a power of 10 to eliminate the decimal. In this case, multiply both numbers by 10 to get rid of the decimal point:

2,000 × 10 = 20,000

and

3.2 × 10 = 32.

Step 3: Divide the first digit of the dividend by the divisor.

In this case, the first digit of 20,000 is 2, and when divided by 32, the quotient is 0. Therefore, write down 0 as the first digit of the quotient.

Step 4: Multiply the quotient digit by the divisor and subtract from the dividend.

Multiply 0 by 32:

0 × 32 = 0

Subtract the result from the dividend:

20,000 - 0 = 20,000

Step 5: Bring down the next digit of the dividend.

Since we have no more digits in the dividend, stop here.

Step 6: Write down the final result.

The quotient is the result of the division:

2,000 ÷ 3.2 = 625

Therefore, when dividing 2,000 by 3.2 using long division, the quotient is 625.

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