Christina is walking for a charity. Her donors have pledged $5 just to start the race and an additional $1.25 for every mile she walks. She ended up signing on 9 donors to help support her race. Write and solve an inequality that represents this situation if she needs to raise at least $155.

The value for the blanks after calculating the as per the given data is found to be as 4 and 9 respectively.

On solving the question we will get the answer of the final blank as 0.

The question can be rephrased as ,

__x 9 - __ x 4 = ___ - ___ = ___.

Now if we will place 4 in first blank and 9 in second blank we will get the result as follows,

4 x 9 - 9 x 4 = 36 - 36 = 0

Therefore , we will get our desired answer.

A relationship between two quantities or, more broadly, two mathematical expressions that asserts that the quantities have the same value or that the expressions reflect the same mathematical object is referred to as equality.

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Answer:

Where is the question we can help you with

its a 1/7 chance

that it will get a it

Answer:

5 is expected to be drawn 3 times

Step-by-step explanation:

Hope this helps

the directional derivative of the given function

\(f(x,y)={x^ 2y^3+2]xy−3}\) in the direction of (3,4) at the point P=(1,−1) is 6.8 units.

It is possible to calculate directional derivatives by utilizing the formula below:

\($$D_uf(a,b)=\frac{\partial f}{\partial x}(a,b)u_1+\frac{\partial f}{\partial y}(a,b)u_2$$\)

\($$f(x,y)\)

=\({(x^ 2)(y^3)+2]xy−3}$$$$\frac{\partial f}{\partial x}\)

=\(2xy^3y+2y-\frac{\partial f}{\partial y}\)

=\(3x^2y^2+2x$$$$\text{Direction vector}\)

=\(\begin{pmatrix} 3 \\ 4 \end{pmatrix}$$\)

To obtain the unit vector in the direction of the direction vector, we must divide the direction vector by its magnitude as shown below:

\($$\mid v\mid=\sqrt{3^2+4^2}=\sqrt{9+16}=\sqrt{25}=5$$\)

\($$\text{Unit vector}=\frac{1}{5}\begin{pmatrix} 3 \\ 4 \end{pmatrix}=\begin{pmatrix} \frac{3}{5} \\ \frac{4}{5} \end{pmatrix}$$\)

Now let us compute the directional derivative as shown below:

\($$D_uf(1,-1)=\frac{\partial f}{\partial x}(1,-1)\frac{3}{5}+\frac{\partial f}{\partial y}(1,-1)\frac{4}{5}$$\)

\($$D_uf(1,-1)=\left(2(-1)(-1)^3+2(-1)\right)\frac{3}{5}+\left(3(1)^2(-1)^2+2(1)\right)\frac{4}{5}$$$$D_uf(1,-1)=\frac{34}{5}$$\)

Hence, the directional derivative of the given function

\(f(x,y)={x^ 2y^3+2]xy−3}\)

in the direction of (3,4) at the point P=(1,−1) is 6.8 units.

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\(3) \: y = \frac{ - 8}{2} ; \: y = - 4\) ✅

Step-by-step explanation:

\(2 \: y = - 8 \\ ⇢  y = \frac{ - 8}{2} \\ ⇢ y = - 4\)

\(\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}\)

Answer:

The expression (5m)³ can be expressed as 5into 5into 5·intom·xm·xm

Answer:

13. 3

Step-by-step explanation:

Given Points:

(x1= 4, y1 = 11), (x2= - 9, y2 = 8)

Distance Formula:

d² = (x2 -x1)² + (y2 -y1)²

Substitute and Calculate:

d² = ( -9 -4)² + ( 8 -11)²

d² = (-13)² + (-3)²

d = √(169+9)

d = √178

d = 13.34166406 round to the nearest tenth

d = 13. 3

Answer:

8

(0,8)

Step-by-step explanation:

Answer:

Step-by-step explanation:

One statistical indicator that can help determine the trustworthiness of data is the margin of error. It provides a measure of the uncertainty associated with the data and helps assess the reliability of estimates.

The margin of error is a statistical indicator that quantifies the range of potential error in an estimate or survey result. It is typically calculated based on sample size and variability in the data. A smaller margin of error indicates a higher level of confidence in the estimate, implying that the data is more trustworthy.
When conducting surveys or data analysis, it is important to consider the margin of error to understand the potential variability and ensure that the data represents the population accurately. A lower margin of error indicates that the estimate is more precise and reliable.
Additionally, other statistical indicators such as confidence intervals, p-values, and statistical significance tests can also provide insights into the reliability of the data. These indicators help assess the likelihood that the observed results are not due to random chance or sampling error.
Overall, a combination of statistical indicators, including the margin of error, can provide evidence of data trustworthiness by evaluating the precision, reliability, and statistical significance of the estimates.

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Answer:

The answer would be D.

Step-by-step explanation:

The answer would be D since 3 and -3 are opposite numbers (they are the same distance in units away from 0) and they add up to 0.

Hope this helps :)

Answer: The correct answer is D

Step-by-step explanation:

It’s D because -3 and 3 equal 0.

To find the value of  $$(72\cdot 78\cdot 85\cdot 90\cdot 98)\div (68\cdot 84\cdot 91\cdot 108),$$

we can use the method of cancellation to make the multiplication simpler. Let's cancel out factors common to both the numerator and denominator pairs.

Thus,  \begin{align*}
\(\frac{(72\cdot 78\cdot 85\cdot 90\cdot 98)}{(68\cdot 84\cdot 91\cdot 108)}&=\frac{(2^3\cdot 3^2\cdot 5\cdot 7\cdot 13\cdot 17\cdot 2)}{(2^2\cdot 17\cdot 7\cdot 3\cdot 2^2\cdot 13\cdot 3\cdot 2^3)}\\&=\frac{(2^3\cdot 3^2\cdot 5\cdot 7\cdot 13\cdot 17\cdot 2)}{(2^2\cdot 2^2\cdot 2^3\cdot 3^2\cdot 7\cdot 13\cdot 17)}\\&=\frac{2}{2}\cdot\frac{3}{3}\cdot\frac{5}{1}\cdot\frac{7}{7}\cdot\frac{13}{13}\cdot\frac{17}{17}\cdot\frac{2}{2^2\cdot 2}\cdot\frac{1}{3^2}\\&=\frac{5}{2^2\cdot 3^2}\\&=\frac{5}{36}\)
\end{align*}

Thus, $$(72\cdot 78\cdot 85\cdot 90\cdot 98)\div (68\cdot 84\cdot 91\cdot 108)=\boxed{\frac{5}{36}}.$$The total number of words used is 118.

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The vector X in \(R^{2}\) whose coordinates with respect to the basis B are [6, -1] is X = [4, -35]

An ordered basis B in \(R^{2}\) is a pair of linearly independent vectors that can be used to uniquely represent any vector in the 2-dimensional space.

In this case, the ordered basis B consists of the vectors [1, -6] and [2, -1].
A vector X in \(R^{2}\) can be written as a linear combination of the basis vectors. To find the vector X whose coordinates with respect to basis B are [6, -1], we can represent it as follows:
X = 6 × [1, -6] + (-1) × [2, -1]
Now, we just need to perform the linear combination:
X = 6 × [1, -6] + (-1) × [2, -1]
X = [6 × 1, 6 × (-6)] + [(-1) × 2, (-1) × (-1)]
X = [6, -36] + [-2, 1]
Next, add the corresponding components of the two resulting vectors:
X = [(6 + -2), (-36 + 1)]
X = [4, -35]

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Answer:

$2.25

Step-by-step explanation:

You have to set up a proportion to show how much the cost of milk is when discounted per gallon. 0% off, the milk would be $3.75. 40% off, the milk would be x. Now I flipped the percents because that is how much you are actually paying.

Proportion would look something like this:

3.75/100 = x/60

solve for x:

225 = 100x

x= 2.25

Individuals that are far from the mean on the first measurement will lie closer to the mean on second; this phenomenon is called regression towards the mean.

What is regression?

Regression analysis is a group of statistical procedures used in statistical modelling to determine the relationships between a dependent variable and one or more independent variables.

If one sample of a random variable is extreme, the next sampling of the same random variable is likely to be closer to its mean. This is known as regression toward the mean.

Background A statistical phenomenon called regression to the mean (RTM) can cause natural variation in repeated data to appear as actual change. It occurs when measurements that are frequently followed by ones that are more typical of the range are unusually large or small.

Hence, individuals that are far from the mean on the first measurement will lie closer to the mean on second; this phenomenon is called regression towards the mean.

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We can pick three different numbers in 161700 ways out of the group 1,2,3, . .. ,100 such that the largest number is larger than the product of the two smaller ones.

It is possible to pick three different numbers out of the group 1,2,3, . .. ,100 such that the largest number is larger than the product of the two smaller ones.

The order in which we pick the numbers does not matter. To calculate how many ways this can be done, we can use the following formula:

Number of ways = (100*99*98)/(3*2*1) = 161700.

Therefore, there are 161700 different ways to pick three different numbers out of the group 1,2,3, . .. ,100 such that the largest number is larger than the product of the two smaller ones.

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Answer:

slope= 6.25

Step-by-step explanation:

the slope represents the meters he travels per second

Answer:

The slope is 0.16

Step-by-step explanation:

You have the run over the rise as a slope equation.

x/y or 5/31.25

The answer to that will be the answer to all of them.

5/31.25=0.16

10/62.5=0.16

15/93.75= 0.16

The rate of change(or slope) is 0.16.

The slope represents time over distance(t/d or x/y) for Oren's 100-meter race.

Answer:

la caca eres tu

Step-by-step explanation:

Gracias pinche vaca

The point (5, 10) has not been translated in the given figure.Hence this statement is false.

The graph shows five points.

A point has been translated right and up.

Now, the statements that are true based on the graph are as follows:

The point (9, D) has been translated right and up.Answer: False

There is no information given about point (9, D).

So, we cannot say anything about the translation of point (9, D).

The point (1, 8) has been translated right and up.Answer: True

As explained above, the point (1, 8) has been translated 7 units to the right and 2 units up to get the new point (8, 10). So, this statement is true.

The point (2, 9) has been translated right and up.Answer: False

The point (2, 9) has not been translated in the given figure.

So, this statement is false.

Statement 4: The point (8, B) has been translated right and up.Answer: True

The point (8, B) has been translated 1 unit up in the given figure. So, this statement is true.

The point (5, 10) has been translated right and up.Answer: False

The point (5, 10) has not been translated in the given figure.

So, this statement is false.

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The solution to the system of linear equations y=x-1 and 2x-3y=-1 is (4, 3)

Linear equations are equations that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient

A system of linear equations is a collection of at least two linear equations.

In this case, the system of equations is given as

y=x-1 and 2x-3y=-1

Rewrite the system of equations as

y = x - 1

2x - 3y = -1

Next, we plot the graph of the equations

From the graph of the equations, we have the point of intersection to be

(x, y) = (4, 3)

This point represents the solution

Hence, the solution to the system of linear equations y=x-1 and 2x-3y=-1 is (4, 3)

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Answer:

19.8 cm

Step-by-step explanation:

Using the Pythagorean theorem , the Square of the distance between the top of the piece and the Shadow Is the sum of the height of the piece. and the lenght of the shadow. basically Just build a triangle with the 3 points you are given: height of the piece, lenght of the shadow and distance between the 2. so it's sqrt(13^2+15^2) = sqrt(394) =19.8 cm

Answer:

Well.. Brainly isn't made for test answers and it breaks their rules, but I will answer..  Not right now tho cus im in math class doing problems but I PROMIS that I WILL edit this and put the answer in. (The upcoming and this sentence is pre-written and copy and pasted in every brainly question or comment I write or answer.) If this answer helped you please consider giving it brainliest.

- •Trix•

( Yes I know my - •Trix• thingy is not my user but its what I would change it to if I could but I can't, please address me as Trix while commenting or talking to me here.)

Answer: it B

Step-by-step explanation: because first 2 = 2/1 / 1/3 but u can’t divide them so you change divide sign on multiple so means 2/1 * 1/3 but the 1/3 flips numbers 3/1 so 2/1 * 3/1 = 6

Answer:

Step-by-step explanation:

A statistical method that is commonly used in the process of creating a clinical prediction rule is: Regression analysis to identify the most important predictive factors. The answer is: 3)

When creating a clinical prediction rule, regression analysis is commonly used to identify the most important predictive factors. Regression analysis helps determine the relationship between a set of independent variables (predictors) and a dependent variable (outcome).

By analyzing the coefficients and significance levels of the predictors, regression analysis can identify which factors have the strongest association with the outcome and thus should be included in the prediction rule.

Options 1) Analysis of variance, 2) Frequencies, and 4) Calculation of effect size are not specific methods typically used in the process of creating a clinical prediction rule.

Analysis of variance is used to test for differences between groups, frequencies determine prevalence, and effect size calculates the magnitude of an observed effect. While these methods may be relevant in other statistical analyses, they are not commonly used in the creation of clinical prediction rules.

Hence, the correct option is: 3)

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The probability of getting a sum that is a multiple of 5 when throwing two fair dice is 1/7.

At the point when two fair dice are tossed, the complete number of results is 36 (6 potential results for each bite the dust). To track down the likelihood of getting a total that is a different of 5, we want to count the great results.

The products of 5 that can be gotten are 5 and 10. The potential mixes to get an amount of 5 are (1, 4), (2, 3), (3, 2), and (4, 1). The conceivable mix to get an amount of 10 is (5, 5).

In this way, there are 5 good results out of 36 all out results. In this way, the likelihood of getting a total that is a numerous of 5 will be 5/36, or roughly 0.1389, which can be improved as 1/7 in its least complex structure.

In rundown, the likelihood of getting a total that is a numerous of 5 while tossing two fair dice is 1/7.

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To decorate the boundary of the floor of a room with square tiles of length 6m, 16 tiles are required.

To find the number of tiles required, we need to calculate the perimeter of the floor and then divide it by the length of each tile.

Given the dimensions of the floor are 36m x 24m, the perimeter can be calculated by adding the lengths of all four sides of the floor.

Perimeter = 2 * (Length + Width)

Perimeter = 2 * (36m + 24m)

Perimeter = 2 * 60m

Perimeter = 120m

Now, we divide the perimeter by the length of each tile (6m) to find the number of tiles required.

Number of tiles = Perimeter / Length of each tile

Number of tiles = 120m / 6m

Number of tiles = 20

However, since we only want to decorate the boundary of the floor, we need to subtract the corners, as they would already be covered by two adjacent sides.

Since each corner is covered by two tiles, we subtract 4 from the total number of tiles calculated earlier.

Number of tiles required = 20 - 4

Number of tiles required = 16

Therefore, to decorate the boundary of the floor with square tiles of length 6m, 16 tiles are required.

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