PLEASE HELP ASAP WILL GIVE BEST RATE​

Answer:

Step-by-step explanation:

not sure 2

Answer:

60

Step-by-step explanation:

Area = ((a+b)/2)h=((7+13)/2)*6=60

The fractions in the options are equivalent to the fraction 18/8, except the option

D; 6/4

A fraction is a representation of a part of an item, by the expressing the proportion consisting of a numerator, divided by a numerator, between which is the divisor bar.

The fraction is; 18/8

Therefore, we get; 18/8 = (2 × 9)/(2 × 4)

The like terms indicates that we get;

(2 × 9)/(2 × 4) = 9/4

Therefore; 18/8 = 9/4

The above fraction is an improper fraction, therefore, we get;

9/4 = (2 × 4 + 1)/4 = 2 1/4

However; 18/8 = (2 × 18)/(2 × 8) = 36/16

Therefore, the numbers in the options A, B, and C are equivalent to the fraction 18/8

The fraction 6/4 is not equivalent to the fraction 18/8

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Inferential statistics involves using sample data to make inferences, predictions, or generalizations about a larger population, providing valuable insights and conclusions based on statistical analysis.

The term "inferential statistics" is associated with the task of making inferences or drawing conclusions about a population based on sample data.

In other words, it involves using sample data to make generalizations or predictions about a larger population.

Inferential statistics is concerned with analyzing and interpreting data in a way that allows us to make inferences about the population from which the data is collected.

It goes beyond simply describing the sample and aims to make broader statements or predictions about the population as a whole.

This branch of statistics utilizes various techniques and methodologies to draw conclusions from the sample data, such as hypothesis testing, confidence intervals, and regression analysis.

These techniques involve making assumptions about the underlying population and using statistical tools to estimate parameters, test hypotheses, or predict outcomes.

The goal of inferential statistics is to provide insights into the larger population based on a representative sample.

It allows researchers and analysts to generalize their findings beyond the specific sample and make informed decisions or predictions about the population as a whole.

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The Lagrange polynomial basis L = {l0(t), l1(t),..., ln(t)} is a set of polynomials with specific properties: li(t_i) = 1 for all i = 0, 1,..., n, and li(t_j) = 0 for all i, j = 0, 1,..., n, where i ≠ j. This basis allows you to represent any polynomial p(t) in Pr by a linear combination of the Lagrange polynomials in the basis L.

Polynomials are mathematical expressions consisting of variables and coefficients, often used in algebra and calculus. In this context, we are considering polynomials of degree n or less, denoted by Pr.

Lagrange polynomials are a type of polynomial that form a basis for Pr. This means that any polynomial in Pr can be expressed as a linear combination of the Lagrange polynomials. The Lagrange polynomial basis is formed from a set of n + 1 distinct points in R, denoted {to, t1, ..., tn}.

Each Lagrange polynomial, denoted li(t), has the following properties:
- li(ti) = 1 for all i = 0, 1,..., n
- li(tj) = 0 for all i, j = 0, 1,..., n, i + j.

In other words, each Lagrange polynomial is equal to 1 at its corresponding point ti, and is equal to 0 at all other points. These properties ensure that the Lagrange polynomials are linearly independent and form a basis for Pr.

Hope this helps! Let me know if you have any further questions.
Hi! I'd be happy to help you with your question. Polynomials are mathematical expressions involving a sum of powers in one or more variables multiplied by coefficients. The Lagrange polynomial is a specific type of polynomial that provides a way to interpolate a polynomial function using a set of n + 1 distinct points in R, {t0, t1, ..., tn}.

The Lagrange polynomial basis L = {l0(t), l1(t),..., ln(t)} is a set of polynomials with specific properties: li(t_i) = 1 for all i = 0, 1,..., n, and li(t_j) = 0 for all i, j = 0, 1,..., n, where i ≠ j. This basis allows you to represent any polynomial p(t) in Pr by a linear combination of the Lagrange polynomials in the basis L.

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Answer:

EF = 0.6

Step-by-step explanation:

Tangent CD touches the circle at D

⇒ CD⊥ DO

⇒ ∠CDO = ∠CDF = 90°

⇒ CDF is a right angled triangle

⇒ CD² + DF² = CF²

⇒ 2.4² + 1.8² = CF²

⇒ CF² = 9

⇒ CF = √9

⇒ CF = 3

Also,

⇒ CF = CE + EF

⇒ CE + EF = 3 -----------eq(1)

The tangents to a circle from an external point are equal lenght

Here C is the external point

⇒ CD = CE

⇒ CE = 2.4

sub in eq(1),

2.4 + EF = 3

⇒ EF = 3 - 2.4

⇒ EF = 0.6

Considering the definition of parallel line, the line that contains the point (1, -1) and is parallel to y = 3x - 2 is y= 3x -4.

A linear equation o line can be expressed in the form y = mx + b

where

Parallel lines are two lines that prolonged towards infinity never touch.

Two lines are parallel if they have the same slope and different y-intercepts.

In this case, the line is y= 3x -2

where:

Two lines are parallel if they have the same slope. So, the parallel line has a slope of 3.

The line passes through the point (1, -1). Replacing in the expression for a line:

-1= 3× 1 + b

-1= 3 + b

-1-3 = b

-4 = b

Finally, the equation of parallel line is y= 3x -4.

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Given, Jada walks at a speed of 3 mph and Elena walks at a speed of 2.8 mph.Both Jada and Elena start walking along a walking trail at the same time.

Let us determine the distance covered by both of them.Distance travelled by Jada in 3 hours is:Distance = Speed × Time= 3 mph × 3 hours= 9 miles Distance travelled by Elena in 3 hours is:Distance = Speed × Time= 2.8 mph × 3 hours= 8.4 miles Thus, Jada will walk 0.6 miles farther than Elena after 3 hours.

To determine how far Jada will walk after 3 hours, we need to calculate the distance traveled based on her speed.

Jada walks at a speed of 3 miles per hour (mph), so we can calculate her distance using the formula:

Distance = Speed × Time

Plugging in the values, we have:

Distance = 3 mph × 3 hours

Distance = 9 miles

Therefore, Jada will walk a distance of 9 miles after 3 hours.

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The given information is as follows:

Jada walks at a speed of 3 mph and Elena walks at a speed of 2.8 mph. If they both begin walking along a walking trail at the same time.

Therefore, Jada will walk 9 miles after 3 hours.

The distance covered by Jada after 3 hours can be calculated as follows:

Distance = Speed x Time

Since Jada walks at a speed of 3 mph, the distance covered by her in 3 hours can be calculated as:

Distance covered by Jada = 3 mph x 3 hours

= 9 miles.

Therefore, Jada will walk 9 miles after 3 hours.

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Answer:

Answer is D

45 and 150 degrees

By bisecting angles 90 and 120 degrees we can construct an angle of 105 degrees.

To bisect an angle, means that the angle is divided into equal halves.

Assume the angles to bisect are alpha and beta, then the following must be true

\(\alpha + \beta = 2\times 105\)

Multiply 2 and 105

\(\alpha + \beta = 210\)

This means that the sum of the angles must be up to 210 degrees.

From the list of given options, only  angles 90 and 120 degrees add up to 210 degrees.

Hence, by bisecting angles 90 and 120 degrees we can construct an angle of 105 degrees.

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A. True. The pooled variance is a statistical measure used in hypothesis testing when comparing means of two populations.

The pooled variance is a statistical measure used in hypothesis testing to compare the means of two populations. It is calculated as a weighted average of the sample variances of two independent samples drawn from the two populations. The pooled variance is used to estimate the common variance of the two populations, assuming they have equal variances. When comparing the means of two populations, we typically use a t-test to determine if there is a statistically significant difference between them. The t-test assumes that the variances of the two populations are equal. If this assumption is not met, the t-test may give inaccurate results. To correct for this, we use the pooled variance, which is a weighted average of the sample variances from each population.

The formula for calculating the pooled variance is: s^2p = [(n1 - 1)s1^2 + (n2 - 1)s2^2] / (n1 + n2 - 2); where s^2p is the pooled variance, s1^2 and s2^2 are the sample variances of the two populations, and n1 and n2 are the sample sizes of each population.

The degrees of freedom for the t-test are calculated as: df = n1 + n2 - 2; where df is the degrees of freedom.

By using the pooled variance, we can improve the accuracy of the t-test when comparing the means of two populations. However, it is important to note that theassumption of equal variances between the populations must be met for the pooled variance to be valid. If the assumption of equal variances is not met, an alternative test, such as the Welch's t-test, may be used instead.

In summary, the statement "The pooled variance is the weighted average of two sample variances drawn from two populations" is true. The pooled variance is a statistical measure used in hypothesis testing to estimate the common variance of two populations, assuming they have equal variances. It is calculated as a weighted average of the sample variances of two independent samples drawn from the two populations, and is used to improve the accuracy of the t-test when comparing the means of two populations.

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Answer:

the answer is c 3^15

Step-by-step explanation:

Answer:

3√15

Step-by-step explanation:

Edge 2021

Answer:

what dont you already got the answer

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

23/111 is a reasonable estimate of the probability that the next fountain drink ordered is a lemonade.

Probability theory deals with numerical evaluations of the likelihood that an event will occur.

Probabilities are mathematical explanations of the likelihood that an event will occur or that a proposition is true. The likelihood of an event is represented by a number between 0 and 1, with 0 typically signifying impossibility and 1 typically signifying certainty.

A probability represents the likelihood or chance that a particular occurrence will take place. Probabilities can be expressed as ratios between 0 and 1, or as percentages between 0% and 100%.

March Madness Movies served 23 lemonades out of a total of 111 fountain drink last weekend.

The probability that the a fountain drink ordered is a lemonade will be :-

  P=  \(\frac{Number of lemonade}{Total fountain drink}\)

 = 23/111

Based on this data, the reasonable estimate of the probability that the next fountain drink ordered is a lemonade = 23/111.

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Answer: 27 inches sq.

Step-by-step explanation:

3*3=9

2*9=18

18+9=27

The correct option is: As the sample size increases, the variability of the sampling distribution decreases. is the FALSE statement.

The probability distribution of the a statistic that is acquired by repeated sampling of a particular population is called the sampling distribution.

Thus, it is incorrect to say that as the sample size increases, the variability of the sampling distribution decreases.

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To determine the distance on the map between the two towns along the main road, we need to use the scale given. The scale 1:200,000 means that 1 unit on the map represents 200,000 units in reality.

Since the distance between the two towns in reality is 28 kilometers, we can find the distance on the map by setting up a proportion:

Distance on Map / Distance in Reality = Scale Factor

Let's solve for the Distance on Map:

Distance on Map = Distance in Reality × Scale Factor

Distance on Map = 28 km × 1/200,000

Distance on Map = 0.00014 km

Now, we need to convert the distance from kilometers to centimeters. Since 1 kilometer is equal to 100,000 centimeters:

Distance on Map = 0.00014 km × 100,000 cm/km

Distance on Map = 14 cm

Therefore, the distance on the map, in centimeters, between the two towns along the main road is 14 cm.

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Answer:

well i dont think anyone from melbourne will be going anywhere anytime soon

Step-by-step explanation:

25 may, sunday, i think it would be 6:45am?

Answer:

Step-by-step explanation:

i hope this answer helpful for you

The total number of miles that Parker would have to run is given as follows:

88.41 miles.

A geometric sequence is a sequence of numbers where each term is obtained by multiplying the previous term by a fixed number called the common ratio q.

As the number of miles increases by 5% each week, the common ratio is obtained as follows:

100% + 5% = 105% = 1.05.

Hence the number of miles each week is given as follows:

Then the total number of miles is given as follows:

16 + 16.8 + 17.64 + 18.52 + 19.45 = 88.41 miles.

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Answer:

75

Step-by-step explanation:

Each pound costs 75¢ so by each pound it increases by 75¢

Answer:

$180.48

Step-by-step explanation:

225.60 * .8  = 180.48

Answer:

$45.12

Step-by-step explanation:

100 - 80 = 20

225.60 x .20 = $45.12

Step-by-step explanation:

There are 48.7 cups in total

2/18 of 48.7 cups is needed for volcano

Total amount needed for experiments are :

2/18 of 48.7 = 97.4/18 = 5.411 cups

If Rocco has 48.7 cups of flour in his storage unit and He needs 2/18 of  that amount to use for his homemade volcano then total number of cups needed for his experiment is 5.411

fraction is a mathematical expression representing the division of one whole number by another

Here given that  Rocco has 48.7 cups of flour in his storage unit. He needs 2/18 that amount to use for his homemade volcano.

Hence total number of cups needed for his experiment can be written as :

\(\frac{2}{18}\times \text{Total cups}\)

\(\frac{2}{18}\times 48.7\\\\\\\frac{2}{180}\times 487\\\\\\\\\frac{974}{180}\\\\ = 5.411\)

If Rocco has 48.7 cups of flour in his storage unit and He needs 2/18 of  that amount to use for his homemade volcano then total number of cups needed for his experiment is 5.411

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A. The expression to represent the amount of medication in milligrams in the patient's body at 1 p.m. on the same day would be 180*(1/2)^(1/8) . The expression to represent the amount of medication in milligrams in the patient's body at 7 p.m. on the same day would be 180*(1/2)^(7/8).

B. The expression 180 (1/2)^5/2 represents the amount of medicine in the body after it is administered. To find the time it takes for the medication to reach this amount, we need to use the formula for half-life: A=A0*(1/2)^(t/t1/2), where A is the amount of medication at time t, A0 is the initial amount of medication, t1/2 is the half-life, and t is the time elapsed. We can rearrange this formula to solve for t:

t = t1/2 * log(A/A0) / log(1/2)

Plugging in the values, we get:

t = 8 * log(180*(1/2)^5/2 / 180) / log(1/2) ≈ 19.5 hours

Therefore, it takes approximately 19.5 hours for the amount of medication in the patient's body to reach 180*(1/2)^5/2.

A. To find the amount of medication in the patient's body at a specific time, we use the formula:

Amount = Initial Dose * (1/2)^(Time Elapsed / Half-life)

1. For 1 p.m (1 hour after administration):
Amount = 180 * (1/2)^(1/8)

2. For 7 p.m (7 hours after administration):
Amount = 180 * (1/2)^(7/8)

B. The expression given is 180 * (1/2)^(5/2). To find the time, we can set up the equation:

180 * (1/2)^(Time Elapsed / 8) = 180 * (1/2)^(5/2)

Since the initial doses are equal, we can simplify the equation:

(1/2)^(Time Elapsed / 8) = (1/2)^(5/2)

Since the bases are equal, the exponents must also be equal:

Time Elapsed / 8 = 5/2

Now, solve for Time Elapsed:

Time Elapsed = 8 * (5/2) = 20 hours

So, the time is 20 hours after the initial administration, which would be 8 a.m. the following day.

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Answer:

The answer is 145 ceramic tiles

Step-by-step explanation:

$4 Divided by $581.82 = 145.455

The correlation coefficient that describes the strongest relationship between food intake and weight loss is -0.90.

A correlation coefficient describes the strength and direction of the relationship between two variables. The correlation coefficient can range from -1 to +1, where -1 indicates a perfect negative correlation, +1 indicates a perfect positive correlation, and 0 indicates no correlation.

Out of the options given, the correlation coefficient that describes the strongest relationship between food intake and weight loss is -0.90. This represents a strong negative correlation, meaning that as food intake increases, weight loss decreases, and vice versa. A correlation coefficient of 0 indicates no correlation, while coefficients of +0.83 and +0.50 represent moderate positive correlations, meaning that as food intake increases, weight loss tends to increase as well, but not as strongly as in the case of a negative correlation.

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Answer:

15 jars of jam

Step-by-step explanation:

9/3=x/5

3x=45

divide by 3

x=15

Answer:

14

Step-by-step explanation:

Answer:

We can start by multiplying the first equation by 3:

12x + 24y = 120

Then we can multiply the second equation by 4:

12x - 8y = 56

Now, we have:

12x + 24y = 120

12x - 8y = 56

If we subtract the first equation from the second equation:

32y = 64

y = 64/24

y = 2

Now that we know the value of y, we can substitute it back into one of the original equations to find the value of x.

Let's use the first equation:

4x+8(2) = 40

4x+16 = 40

4x = 24

x = 24/4

x =6

So, the solution of the system of equations is x = 6, y = 2.

Answer:

13 Mother's Day cards