I have two questions for 15 points! first, what is 2000 × 143, and WHY, please explain, and second what is ur favorite book​

Answer: There will be 4977 bacteria present after 10 hours.

Step-by-step explanation:

The exponential function for continuous growth in t years is given by :-

\(P=Ae^{kt}\)   (i)

, where A = initial population, k= rate of growth.

As per given, A= 2000,  

After t= 2 hours, P=2400

Put these values in  (i), we get

\(2400=2000e^{2k}\\\\\Rightarrow\ 1.2=e^{2k}\)

Taking log on both sides

\(\ln 1.2=2k\\\\\Rightarrow\ k=\dfrac{\ln1.2}{2}=\dfrac{0.182321556794}{2}\\\\\Rightarrow\ k\approx0.09116\)

put value of A=2000, k= 0.09116 and t= 10 , we get

\(P=2000e^{0.09116\times10}\\\\=2000e^{0.9116}\\\\=2000\times2.4883\\\\=4976.6\approx4977\)

Hence, there will be 4977 bacteria present after 10 hours.

Answer:

Step-by-step explanation:

Answer:

i think that one of the answers is (3,2)

Step-by-step explanation:

Answer:

Step-by-step explanation:

4,6

Answer:

the answer is b

Step-by-step explanation:

big boy

Answer:

32 years old

Step-by-step explanation:

Reverse what the teacher said. Half 120 to get 60. Subtract 28 from 60. The teacher is 32.

Answer:

C. Work backwards

Step-by-step explanation:

I hope this helped!

Answer

-6

Step-by-step explanation:

Took test

The average difference between the number of jumps completed and the mean value is about 11.71.

To find the mean absolute deviation (MAD), we need to first find the mean of the data set:

Mean = (70 + 71 + 45 + 55 + 39 + 31 + 53) / 7 = 47.43

Next, we find the absolute deviations of each data point from the mean:

|70 - 47.43| = 22.57

|71 - 47.43| = 23.57

|45 - 47.43| = 2.43

|55 - 47.43| = 7.57

|39 - 47.43| = 8.43

|31 - 47.43| = 16.43

|53 - 47.43| = 5.57

We then find the average of these absolute deviations:

MAD = (22.57 + 23.57 + 2.43 + 7.57 + 8.43 + 16.43 + 5.57) / 7

MAD = 11.71

Therefore, the mean absolute deviation of the numbers of jumps completed is approximately 11.71.

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a) The range is 14.

b) The sample variance is 20.78.

c) The sample standard deviation is 4.56.

a) Range

The range of a given set of data values is the difference between the maximum and minimum values in the set. In this case, the maximum value is 15 and the minimum value is 1. So, the range is:

Range = maximum value - minimum value

Range = 15 - 1

Range = 14

b) Sample variance

To calculate the sample variance, follow these steps:

1. Calculate the sample mean (X). To do this, add up all of the data values and divide by the total number of values:

n = 9

∑x = 7 + 4 + 6 + 12 + 8 + 15 + 1 + 9 + 13 = 75

X = ∑x/n = 75/9 = 8.33

2. Subtract the sample mean from each data value, square the result, and add up all of the squares:

(7 - 8.33)² + (4 - 8.33)² + (6 - 8.33)² + (12 - 8.33)² + (8 - 8.33)² + (15 - 8.33)² + (1 - 8.33)² + (9 - 8.33)² + (13 - 8.33)² = 166.23

3. Divide the sum of squares by one less than the total number of values to get the sample variance:

s² = ∑(x - X)²/(n - 1) = 166.23/8 = 20.78

Therefore, the sample variance is 20.78 (rounded to two decimal places).

c) Sample standard deviation

To calculate the sample standard deviation, take the square root of the sample variance:

s = √s² = √20.78 = 4.56

Therefore, the sample standard deviation is 4.56 (rounded to two decimal places).

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The width of the rectangle with a length of 42 inches is 70 inches.

To find the width of a rectangle that has a length of 42 inches, we can use the concept of proportions based on the given table.

First, we observe that the length and width of the rectangles are proportional. We can set up a proportion using the values from the table:

Length (in inches): 6, 9, 18, 24

Width (in inches): 10, 15, 30, 40

Using the proportion, we have:

Length / Width = Length / Width

We can select any corresponding pair of length and width values to set up the proportion. Let's choose the first pair: 6 and 10.

6 / 10 = 42 / x

To find the width (x) when the length is 42, we can solve the proportion:

6 / 10 = 42 / x

Cross-multiplying:

6x = 10 * 42

6x = 420

Dividing both sides by 6:

x = 420 / 6

x = 70

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Answer:

y will be 8 making z to be 9 and x does not have a value here

The given statement is false and the explanation is given below:projvu = projuv This equation is equivalent to (proj v u).v = (proj u v).u.

Therefore, the given statement is not true. For example, consider the vectors u = (1, 0) and v = (0, 1). The projection of u onto v is zero, and the projection of v onto u is zero. In this case, projvu ≠ projuv, which implies that the given statement is not correct. Thus, the given statement is False.

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Answer:

Square: \((x-10)^{2} -68\)

Vertex: (10,-68)

Step-by-step explanation:

If two events A and B are independent, the following statements must be true. If two events A and B are independent, then the occurrence of one event does not affect the occurrence of the other event.

In other words, the probability of one event does not influence the probability of the other event. Based on this definition, we can analyze each statement and determine which one(s) must be true.
a. P(AIB)=P(A): This statement is true for independent events. It means that the probability of event A occurring given that event B has occurred is equal to the probability of event A occurring. Therefore, statement a is correct.
b. P(A or B) = P(A)P(B): This statement is not always true for independent events. It is only true if events A and B are also mutually exclusive. In other words, if events A and B cannot occur at the same time. Therefore, statement b is incorrect.
c. P(A/B)-P(B): This statement does not make sense for independent events since the probability of event A does not depend on the occurrence of event B. Therefore, statement c is incorrect.
d. P(A and B) = P(A)+P(B): This statement is not always true for independent events. It is only true if events A and B are also mutually exclusive. In other words, if events A and B cannot occur at the same time. Therefore, statement d is incorrect.
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The required requirement of the density curve is should be equal to 1 and the ordinate should not be zero.

Given that,
Two requirements of a density curve are to be determined.

A density curve is defined as a curve on a graph that represents the distribution of values in a dataset.

Here,

The two requirements of a density curve should be,

a. The area under the density curve should be equal to 1.

b. The ordinate of the curve should not be zero i.e. they should always have the vertical height.

Thus, the required requirement of the density curve is mentioned above.

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Answer:

one is radius and the other is chord

Step-by-step explanation:

The absolute value of the elasticity coefficient for Toasty Hands' gloves is 394,265.23.

The elasticity coefficient is calculated as follows:

Elasticity coefficient = (Change in demand)/(Change in price) * (Original price)/(Original demand)

In this case, the change in demand is 540,000 - 440,000 = 100,000 pairs. The change in price is 239 - 279 = -40. The original price is $279, and the original demand is 440,000 pairs.

Plugging these values into the formula, we get:

Elasticity coefficient = (100,000)/(-40) * (279)/(440,000) = -394,265.23

The absolute value of the elasticity coefficient is 394,265.23. This means that the demand for Toasty Hands' gloves is elastic, meaning that a small change in price will lead to a large change in demand.

Here is a more detailed explanation of the calculation:

The change in demand is calculated by subtracting the original demand from the new demand. In this case, the new demand is 540,000 pairs, and the original demand is 440,000 pairs. So the change in demand is 540,000 - 440,000 = 100,000 pairs.

The change in price is calculated by subtracting the original price from the new price. In this case, the new price is $239, and the original price is $279. So the change in price is 239 - 279 = -40.

The original price is $279, and the original demand is 440,000 pairs.

Plugging these values into the formula, we get the elasticity coefficient of -394,265.23.

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Answer:

1. B

2. A

3. B

4. ???

5. A

6 ???

7. I can't see it

Step-by-step explanation:

The missing Value, x, that when multiplied by 5/3^4 gives the result of 5^4 is 13125.

The missing value that, when multiplied by 5/3^4, gives the result of 5^4, we can set up the equation:

(5/3^4) * x = 5^4

To solve for x, we can simplify both sides of the equation. First, let's simplify the right side:

5^4 = 5 * 5 * 5 * 5 = 625

Now, let's simplify the left side:

5/3^4 = 5/(3 * 3 * 3 * 3) = 5/81

Now we have:

(5/81) * x = 625

To solve for x, we can multiply both sides of the equation by the reciprocal of 5/81, which is 81/5:

(81/5) * (5/81) * x = (81/5) * 625

On the left side, the fraction (81/5) * (5/81) simplifies to 1, leaving us with:

1 * x = (81/5) * 625

Simplifying the right side:

(81/5) * 625 = 13125

Therefore, the missing value, x, that when multiplied by 5/3^4 gives the result of 5^4 is 13125.

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Answer:

-3

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ].

8-14/-2-(-4)

-6/2

-3

Best of Luck!

The answer of the given conditions is 255/3 =83, 368/16 = 23 and 2 210/65 = 34.

What are the numerator and denominator?

For example, 4/5 is a fraction, and the line separating the numbers 4 and 5 is the fraction bar. Here the number above the fraction bar is the numerator, and the one below the fraction bar is the denominator. A numerator represents the number of parts out of the whole, which is the denominator.

3 divided by 255 is equal to 3/255.

16 divided by 368 is equal to 16/368.

65 divided by 2 210 is equal to 65/2210.

Note that for 2 and 3 the numerator and denominator have been swapped and the division is not correct, it should be 368/16 = 23 and 2 210/65 = 34

Hence, the answer of the given conditions are 255/3 =83, 368/16 = 23, and 2 210/65 = 34.

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The fractional exponent means 144^(1/2) equals 12. and  121^(3/2) equals 121.

A fractional exponent represents the concept of taking a root or power of a number. The numerator of the fraction indicates the power to which the number is raised, and the denominator represents the root that is taken.

Let's evaluate the given expressions:

144^(1/2): This means we are taking the square root of 144. The square root of a number is a value that, when multiplied by itself, gives the original number. In this case, the square root of 144 is 12 because 12 * 12 = 144. Therefore, 144^(1/2) equals 12.

121^(3/2): This means we are taking the cube root of 121 and then squaring the result. The cube root of a number is a value that, when multiplied by itself twice, gives the original number. The cube root of 121 is 11 because 11 * 11 * 11 = 121. Squaring 11 gives us 121.

Therefore, 121^(3/2) equals 121.

To summarize: 144^(1/2) = 12 and 121^(3/2) = 121

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Span{V1, V2} is the set of all vector linear combinations V1 and V2, which contains every vector that can be represented as a vector linear combination of V1 and V2. The five vectors in SpanV1, V2 are as follows:

[7, 3, 8] (V1)

[-7, 4, 0] (V2)

[0, 0, 0] (the zero vector)

[7, 7, 8] (V1 + V2)

[-14, 10, 16] (2V1)

A vector is a matrix that has only one row or one column. A row vector is a matrix with only one row. Example Because it only contains one row, the matrix is a row vector. A column vector is a matrix with only one column. If all of the scalars in a matrix are real-valued, it is indicated using uppercase boldface letters, such as A R m n. That is, the matrix exists in a real-valued vector space with m n dimensions. As a result, matrices are just vectors expressed in a two-dimensional table-like format.

Here,

Span{V1, V2} is the set of all linear combinations of vectors V1 and V2, which includes any vector that can be expressed as a linear combination of V1 and V2. The five vectors in Span{V1, V2} are:

[7, 3, 8] (V1)

[-7, 4, 0] (V2)

[0, 0, 0] (the zero vector)

[7, 7, 8] (V1 + V2)

[-14, 10, 16] (2V1)

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Answer:

The same

Step-by-step explanation:

length does not mean anything in terms of diameter

The probability of selecting two butterscotch candies from a box containing 17 candies (5 butterscotch, 4 peppermint, and 8 taffy) at random is 10/153.

To calculate the probability, we first determine the total number of possible outcomes and the number of favorable outcomes.

For the first candy selection, there are 17 candies in total, so the probability of selecting a butterscotch candy is 5/17. After the first candy is selected, there are 16 candies remaining, with 4 of them being butterscotch.

For the second candy selection, the probability of selecting another butterscotch candy is now 4/16 since there are 4 butterscotch candies left out of the remaining 16 candies.

To find the probability of both events occurring (selecting two butterscotch candies), we multiply the probabilities together:

(5/17) * (4/16) = 20/272 = 5/68.

Therefore, the probability of selecting two butterscotch candies from the box is 5/68.

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The value of the fractions in the mixed fraction form is 3(⁷/₉), 4(⁷/₉), and 6(²/₅) respectively.

A mixed fraction is a fraction that is created by fusing a fraction with a whole number. The fraction is defined as the division of the whole part into an equal number of parts.

The given fractions 34/9, 43/9, and 32/5 can be written in the form of the mixed fraction as below:-

To write the fractions in the form of the mixed fraction first divide the fraction by the complete number and put the remainder on the numerator.

34/9 = 3(⁷/₉)

43/9 = 4(⁷/₉)

32/5 = 6(²/₅)

Therefore, the value of the fractions in the mixed fraction form is 3(⁷/₉), 4(⁷/₉), and 6(²/₅) respectively.

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Answer:

b

Step-by-step explanation:

i did it i got it right

x = -12 - 4y

y = -3 - (x/4)

There you go! :D

Answer:

#4,   x-1/(x^2+3x+2)

Step-by-step explanation:

x/(x^2+3x+2) - 1/((x+2)(x+1))

Convert the 1/((x+2)(x+1)) to 1/(x^2+3x+2)

now you have a common denominator to subtract

x/(x^2+3x+2) - 1/(x^2+3x+2)

results x-1/(x^2+3x+2)

D.

It's an upside-down ln(x) function that's been shifted 3 units to the left.