Can someone help me please

Answer:

Jamie

Step-by-step explanation:

Visually, you can already see Jamie is closer to Cameron

Mathematically, you are correct, the distance formula is used

Arthur Location: (20, 35)

Cameron Location: (65, 40)

Jamie Location: (45, 20)

Distance formula:

d = √(x2 - x1)² + (y2 - y1)²

First Image is calculating Arthur distance to Cameron

which the distance is 45.276925690687

Second Image is calculating Jamie distance to Cameron

which the distance is 28.284271247462

28 is less than 45 hence Jamie is closer to cameron

Step-by-step explanation:

They can be found by considering where the second derivative changes signs. In similar to critical points in the first derivative, inflection points will occur when the second derivative is either zero or undefined.

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An integrated explanation of numerous hypotheses, supported by a large number of tests, and accepted by a majority of experts, is known as a theory .

Given,

Definition .

According to definition of theory,

A) It can be an explanation of scientific laws.

B) It is a total explanation of numerous hypothesis, each supported by a large body of results.

C) It is a summary and simplification of many data that previously appeared unrelated.

D) It is an assumption for new data suggesting new relationships among a range of natural phenomena.

Hence the definition given is of theory .

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1. b) Factorise ➾ y² - 20y + 100

1. d) Factorise ➾ 48 - 13p - p²

2. d) Factorise ➾ 18y² - y - 4

2. e) Factorise ➾ 4m² - 27m + 18

1. b) y² - 20y + 100

⇝ y² - 10y - 10y + 100 ( Splitting middle term )

⇝ y ( y - 10 ) - 10 ( y - 10 )

⇝ ( y - 10 )(y - 10 ) Ans.

1. d) -p² - 13p + 48

⇝ -p² - 16p + 3p + 48 ( Splitting middle term )

⇝ -p ( p + 16 ) + 3 ( p + 16 )

⇝ ( p + 16 )(3 - p ) Ans.

2.d) 18y² - y - 4

⇝ 18y² - 9y + 8y - 4 ( Splitting middle term )

⇝ 9y ( 2y - 1 ) + 4 ( 2y - 1 )

⇝ ( 2y - 1 )( 9y + 4 ) Ans.

2.e) 4m² - 27m + 18

⇝ 4m² - 24m - 3m + 18 ( Splitting middle term)

⇝ 4m ( m - 6 ) - 3 ( m - 6 )

⇝ ( m - 6 )( 4m - 3 ) Ans.

Answer:

10

Step-by-step explanation:

Answer:

10 km

Step-by-step explanation:

total no of km covered=400

total no of trips=40

distance in each trip= 400/40

=10km

Answer:

9:10 pm

Step-by-step explanation:

Answer:

9:10

Step-by-step explanation:

7:30 plus an hour is 8:30, plus 40 minutes would be (8:70) 60 minutes is in an hour, so it would be 9:00 and add the extra 10 min.

9:10

The midpoint of the line is (-2.5, -0.5)

From the question, we have the following parameters that can be used in our computation:

E(-2,5) and Q(-3,-6)

The midpoint of the line is calculated as

Midpoint = 1/2(E + Q)

Substitute the known values in the above equation, so, we have the following representation

Midpoint = 1/2(-2 - 3, 5 - 6)

Evaluate

Midpoint = (-2.5, -0.5)

Hence, the midpoint of the line is (-2.5, -0.5)

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The quadratic equation that best represents his model of the relationship between stock value and time is given by:

\(y = -0.0976(x - 10)^2 + 18, x \geq 0\)

The graph is given at the end of the answer.

The equation of a quadratic function, of vertex (h,k), is given by:

\(y = a(x - h)^2 + k\)

In which a is the leading coefficient.

In this problem, the maximum value was a share value of $18 after 10 days, hence the vertex is:

(h,k) = (10,18).

Thus:

\(y = a(x - 10)^2 + 18\)

Since the initial price was of $8 per share, we have that:

\(8 = a(0 - 10)^2 + 18\)

\(-82a = 8\)

\(a = -\frac{8}{82}\)

\(a = -0.0976\)

Hence the equation is:

\(y = -0.0976(x - 10)^2 + 18, x \geq 0\)

At the end of the answer, the sketch of the graph is given.

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The variable other than the ones being studied that could affect the outcome of an experiment if not controlled is known as the extraneous variable. An extraneous variable is defined as any variable that is not under investigation, which may impact the dependent variable (DV) and lead to inaccurate findings.

Experiments should be designed to control as many extraneous variables as possible to get accurate results of the relationship between the independent variable and dependent variable. In most cases, extraneous variables are an issue in experimental studies because researchers cannot control all variables in a real-world setting. In a perfect world, the only difference between the experimental and control groups is the independent variable (IV), which is the only variable that the researcher manipulates to test the effects on the dependent variable.

Unfortunately, real-world experiments are more complex, and many other factors may impact the dependent variable, making it difficult to establish a cause-and-effect relationship between the independent variable and dependent variable. The challenge for the researcher is to identify the extraneous variables and control them to the best of their ability to get the most accurate findings.

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Angle 1 has a measure of greater than 97° and no more than 115°. (that means less than or equal to)

An angle is formed when two straight lines or rays meet at a single terminal. The place where two points converge is known as an angle's vertex. The Latin term "angulus," which means "corner," is whence the word "angle" gets its name." An angle is a shape in planar geometry made up of two rays or lines that have a common termination. The English word "angle" derives from the Latin word "angulus," which means "corner." The shared terminus of two rays is known as the vertex, and the two rays are referred to as sides of an angle.

This means that:

< 1 ? 97

< 1 ≤ 115

Angle 1 in the diagram is equivalent to (9x + 7). Because they are different internal angles, this is the case.

Hence, the following follows:

9x+7 ? 97

And

9x+7 ≤ 115

Solve for x:

9x? 97-7

9x? 90

Divide through by 9

x? 10

And

9x ≤ 115-7

9x ≤ 108

Divide through by 9

x ≤ 12

10i ≤ 12

As a result, the following is the number line graph representing the range of potential values of x:

The number line is that.

0   2   4    6    8    10    12  

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TRUE. The expression "not X and Y" is a conjunction of two logical statements, where "not X" is the negation of X, and "Y" is another logical statement.

In general, the truth value of a conjunction is only true when both statements are true. In this case, if X is false (i.e., not true) and Y is true, then "not X" is true and "Y" is also true. Therefore, "not X and Y" is true in this case.

The expression "not X and Y" can be represented using truth tables, which are tables that show the possible combinations of truth values for the logical statements involved, and the resulting truth values of the expression.

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The expression: not X and Y is true if X is false and Y is true? TRUE of FALSE.

In general, to evaluate the function f(x) at a specific value of x, we substitute that value into the expression for f(x) and simplify.

In mathematics, a function is a relation between two sets, where for every element in the first set (called the domain), there is exactly one element in the second set (called the range) that the function maps to. In simpler terms, a function is a rule that assigns each input value from the domain to exactly one output value in the range. Functions are usually represented by a formula or equation that describes the relationship between the input and output values. For example, the function f(x) = 2x + 1 maps every input value of x to an output value that is twice the input value plus 1.

Here,

To evaluate the function f(x) = 4x - 6, we substitute the given values of the independent variable into the expression for f(x) and simplify.

For example:

f(0) = 4(0) - 6 = -6

f(1) = 4(1) - 6 = -2

f(2) = 4(2) - 6 = 2

f(-1) = 4(-1) - 6 = -10

f(3a) = 4(3a) - 6 = 12a - 6

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In the context of ideal gas behavior, the most ideal conditions for the parameters pressure (P), temperature (T), and number of moles (n) depend on the specific situation or application. However, I can provide general insights for each parameter.

1. Low pressure (P): Ideal gas behavior is best approximated when the pressure is low. This is because the gas molecules have more space to move around, minimizing their interactions with each other and making their behavior more predictable.

2. High temperature (T): Ideal gas behavior is more accurate at higher temperatures because the gas molecules have more kinetic energy. This allows them to move more freely, reducing the influence of intermolecular forces that can deviate the gas from ideal behavior.

3. High number of moles (n): Having a high number of moles means there are more gas molecules present. This generally improves the accuracy of ideal gas predictions because the behavior of individual molecules tends to average out, leading to more predictable and consistent results.

Considering these factors, the most ideal conditions for P, T, and n are low pressure, high temperature, and high number of moles, respectively. This corresponds to the option: low P, high T, and high n.

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Answer:

\(\sqrt{9}+\sqrt{25}=8\)

Step-by-step explanation:

\(\sqrt{9}+\sqrt{25}\)

\(3+5\)

\(8\)

\(▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)

The given expression is equivalent to :

\( \large \boxed{ \mathfrak{Step\;\: by\:\; Step \:\:Explanation}}\)

\(\mathrm{✌TeeNForeveR✌}\)

Answer:

4th statement

Step-by-step explanation:

\(\frac{g}{h}\) = k ( multiply both sides by h to clear the fraction )

g = hk

Answer:

Answer is option A

Take an example

I am taking 10/5 = 2

Than 5×2 = 10

Step-by-step explanation:

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The skip interval should be 40 if the sampling frame has 2000 names and the desired sample size is 50.

Systematic sampling is a type of sampling which uses the probability method where researchers select members of the group or population at a regular interval.

To determine the skip interval, it is necessary to first determine the sample size. Then the skip interval can be determined by dividing the total population by the target/desired sample size. Therefore;

skip interval = population / target sample size

Substituting the given values;

skip interval = 2000 / 50

skip interval = 40

Hence, the skip interval is calculated to be 40 if the frame has 2000 names and the desired sample size is 50.

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The procedure which is deemed to be the type of sample in discuss is; representative sample are free of bias.

Representative sampling and random sampling are two techniques used to help ensure data is free of bias. A representative sample on the other hand is a group or set chosen from a larger statistical population according to specified characteristics. A random sample is a group or set chosen in a random manner from a larger population.

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Answer:

N:ki n:kn:kNN

Step-by-step explanation:

Answer:

Remember the maximum height will be at the vertex. The x value of the vertex is your time, so use x=-b/2a. Then if it had also asked what the height was, you would plug that answer into your equation to find the y value of the vertex. Pretty sure your teacher is just asking you to find the x though:)

Step-by-step explanation:

To add scientific notation with different exponents, you need to adjust the exponents so that they are equal. Once the exponents are aligned, you can add or subtract the corresponding coefficients.

First, identify the numbers in scientific notation that you want to add. Let's say you have two numbers, A and B, expressed in scientific notation as A x 10^n and B x 10^m, where n and m are the exponents.

To add these numbers, you need to adjust one of them so that the exponents are the same.

Choose the number with the smaller exponent and multiply both its coefficient and exponent by the appropriate power of 10 to match the exponent of the other number.

For example, if n < m, you would multiply number A by \(10^{m-n}\), which means multiplying the coefficient of A by \(10^{m-n}\) and keeping the exponent of 10 as n.

Once the exponents are aligned, you can add or subtract the coefficients of the adjusted numbers.

This will give you the final result in scientific notation.

It's important to note that if the exponents are significantly different, adjusting the exponents may involve multiplying or dividing by large powers of 10, which can affect the precision of the final result.

Therefore, it's advisable to retain the appropriate number of significant figures in your calculations.

In summary, to add scientific notation with different exponents, you adjust one of the numbers by multiplying its coefficient and exponent by an appropriate power of 10 to match the exponent of the other number.

Then, you can add or subtract the coefficients and express the result in scientific notation.

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The level of confidence, variability estimates, and sample size can help determine the accuracy (sample error) and estimate the costs of the sample.

Explanation: The level of confidence (e.g., 95%) indicates the probability that the sample accurately represents the population. It determines the range within which the population parameter is estimated. The variability estimates, such as the standard deviation or variance, provide information about the spread of the data. By combining the level of confidence, variability estimates, and sample size, one can estimate the accuracy or sample error, which represents how closely the sample statistics reflect the population parameters.

Determining the costs of the sample involves factors beyond the provided information, such as data collection methods, analysis procedures, and logistical considerations. The representativeness of the sample depends on the sampling method used and how well it captures the characteristics of the target population.

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the answer is less than 1/8 of a pizza. 1/4 divided by 6 = 1/4 x 1/6 = 1/24

and it is less than 1/8, pretty obvious.

The two triangles CBF and EDF are congruent.

In geometry, two figures or objects are said to be congruent if their shapes and sizes match, or if one is the mirror image of the other. The meaning of congruency is that the two shapes are similar as well as equal in size.

The two triangles are congruent by the conditions below,

Rotation is a kind of transformation,

ΔEDF will be the image of  ΔCBF

ΔCBF ≅ ΔEDF

Therefore, the two triangles CBF and EDF are congruent.

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By definition a square has all 4 sides equal, the area of a square is sxs or s^2, so s^2 = 400, s = square root of 400 = 20. All sides will be equal to 20 m. The perimeter is the sum of the sides or 4 x s or 80.

Steps:

A= L^2

Where L is length of the side

400=L^2 》》》》》 square root

L= 20 all sides of square are 20 m

P = 4L

=4(20)

=80m

By using percentage, it can be calculated that

Percentage reduction on the portable cd player  \(= 18.76 \%\)

What is Percentage?

Suppose there is a number and the number has to be expressed as a fraction of 100. The fraction is called percentage.

For example 9% means \(\frac{9}{100}\). Here, 9 is expressed as a fraction of 100.

Original price of the CD player = $79.95

Selling price = $64.95

Reduction in price = $(79.95 - 64.95) = $15

Percentage reduction on the portable cd player = \(\frac{15}{79.95} \times 100 = 18.76 \%\)

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1.A

2.D

3.B

Step-by-step explanation:

Have a nice day!

Answer: Therefore, the measures of the interior angles are:

Angle A = 48°

Angle B = -92 + x

Angle C = 224 - x

Step-by-step explanation:   To find the measures of the interior angles, we'll use the fact that the sum of the interior angles of a triangle is always 180 degrees.

Let's denote the angles as follows:

Angle A = ZA = 48°

Angle B = ZB

Angle C = ZC

From the information given, we know that angle A is 48 degrees. We can find angle C by subtracting the given value (x-44) from 180 since it is the supplementary angle to angle C.

Angle C = 180 - (x - 44) = 224 - x

Now, we can use the fact that the sum of the interior angles of a triangle is 180 degrees to find angle B.

Angle A + Angle B + Angle C = 180

Substituting the known values:

48 + ZB + (224 - x) = 180

Simplifying the equation:

272 - x + ZB = 180

ZB = 180 - 272 + x

ZB = -92 + x

Answer:

168 yards

Step-by-step explanation:

The park is a square. Therefore all sides are equal.

Area is length x width.

196=l x w

Square root 196 to get 14.

14 x 14 = 196

All sides equal 14.

You need perimeter if its around.

P= 14 x 4

The perimeter is 56.

It was ran around 3 time though so you have to times that by 3.

56 x 3

168 yards.

Answer:

x = square root of 119

Step-by-step explanation:

Because it is only a little bigger than the side it opposes

The amount which Craig has to pay is $40.

The discount refers to the amount by which a listed item is reduced in price.

Given that Craig buys a leaf blower during the sale.

The original price of leaf blower was $50.

Let us assume that the sale has 20% discount.

Now we have to find the amount Craig has to pay.

20% of 50 we have to find.

20/100 × 50

0.2×50=10

So the amount he has to pay be 50-10=40

Hence, $40 be the amount which Craig has to pay.

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